I have a build that I used in Beta and it worked very well for me.  Now, it isn't built for IO slotting, this is more of a traditional SO build (easily swapped out with regular IO's) for those of us who don't have teh moniez to play the market (or the patience).  It's a solid build never the less.
Hero Plan by Mids' Hero Designer 1.30
http://www.honourableunited.org.uk/mhd.php
Level 50 Magic Tanker
Primary Power Set: Willpower
Secondary Power Set: Super Strength
Power Pool: Flight
Power Pool: Fitness
Power Pool: Fighting
Ancillary Pool: Energy Mastery
Hero Profile:
Level 1: Mind Over Body -- ResDam-I:50(A)
, ResDam-I:50(17)
, ResDam-I:50(17)
, EndRdx-I:50(50)
Level 1: Jab -- Dmg-I:50(A)
, Dmg-I:50(3)
, Dmg-I:50(3)
, Acc-I:50(7)
, Acc-I:50(27)
, EndRdx-I:50(34)
Level 2: Fast Healing -- Heal-I:50(A)
, Heal-I:50(27)
, Heal-I:50(31)
Level 4: Haymaker -- Dmg-I:50(A)
, Dmg-I:50(5)
, Dmg-I:50(5)
, Acc-I:50(7)
, Acc-I:50(15)
, EndRdx-I:50(33)
Level 6: Indomitable Will -- EndRdx-I:50(A)
Level 8: Rise to the Challenge -- Heal-I:50(A)
, Heal-I:50(9)
, Heal-I:50(9)
, EndRdx-I:50(43)
Level 10: Air Superiority -- Dmg-I:50(A)
, Dmg-I:50(11)
, Dmg-I:50(11)
, Acc-I:50(15)
, Acc-I:50(25)
, EndRdx-I:50(37)
Level 12: Quick Recovery -- EndMod-I:50(A)
, EndMod-I:50(13)
, EndMod-I:50(13)
Level 14: Fly -- Flight-I:50(A)
Level 16: Taunt -- RechRdx-I:50(A)
Level 18: Heightened Senses -- DefBuff-I:50(A)
, DefBuff-I:50(19)
, DefBuff-I:50(19)
, EndRdx-I:50(43)
Level 20: Knockout Blow -- Dmg-I:50(A)
, Dmg-I:50(21)
, Dmg-I:50(21)
, Acc-I:50(23)
, Acc-I:50(23)
, EndRdx-I:50(25)
Level 22: Swift -- Flight-I:50(A)
Level 24: Health -- Heal-I:50(A)
, Heal-I:50(34)
, Heal-I:50(34)
Level 26: Stamina -- EndMod-I:50(A)
, EndMod-I:50(31)
, EndMod-I:50(31)
Level 28: Rage -- RechRdx-I:50(A)
, RechRdx-I:50(29)
, RechRdx-I:50(29)
, ToHit-I:50(40)
, ToHit-I:50(42)
, ToHit-I:50(42)
Level 30: Boxing -- Acc-I:50(A)
Level 32: Strength of Will -- ResDam-I:50(A)
, ResDam-I:50(33)
, ResDam-I:50(33)
Level 35: Hurl -- Dmg-I:50(A)
, Dmg-I:50(36)
, Dmg-I:50(36)
, Acc-I:50(36)
, Acc-I:50(37)
, EndRdx-I:50(37)
Level 38: Foot Stomp -- Dmg-I:50(A)
, Dmg-I:50(39)
, Dmg-I:50(39)
, Acc-I:50(39)
, Acc-I:50(40)
, RechRdx-I:50(40)
Level 41: High Pain Tolerance -- ResDam-I:50(A)
, ResDam-I:50(42)
, ResDam-I:50(43)
, Heal-I:50(46)
, Heal-I:50(46)
, Heal-I:50(46)
Level 44: Tough -- ResDam-I:50(A)
, ResDam-I:50(45)
, ResDam-I:50(45)
, EndRdx-I:50(45)
Level 47: Weave -- DefBuff-I:50(A)
, DefBuff-I:50(48)
, DefBuff-I:50(48)
, EndRdx-I:50(48)
Level 49: Conserve Power -- RechRdx-I:50(A)
, RechRdx-I:50(50)
, RechRdx-I:50(50)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Gauntlet 
------------
[u]Set Bonus Totals:[u]
<font class="small">Code:[/color]<hr /><pre>|   Copy & Paste this data chunk into Mids' Hero Designer to view the build   |
|-----------------------------------------------------------------------------|
|MHDz;3149;687;916;|
>-KEEL&.VC`0AN](O,.^`%5LCQ-'>VK%5O3`95FUYP@,1&4#"EFU*UEY]MI.B%/RNVK/U;(P?![&X_D
SDZQT?5X63?%5U]?R7#VR#S2?F75Q*+?FI:B^ZWH^^U:>3I?S#UV;S=M%UP^;I  M;5H3F:+]516[,QGT
_EX6@_RJ;2UZO]M-_*ZF`V%ZUWYJG2]>']85U<&UV_SV?,)/Z/&6':9WU=%J\M;XE:

5+N5U!E*51_
%3MGG<_+1;BAGV81=@I,=*TR]>#=>+Y:*-[Q"'ZN-TZE-Y0.D4<YR%$EP?KL^`NW$H7)^<U_)@!Y@).
H$C"L83]&4?'$E-$$/W%L1CA8_%P+.ES2:"?#&Z9_2>7V^10&6`*,Z0TM  ^'[DN2^**`D^12Q!#-4@8G
8D:JD([&[TG#ON#[OG",?8C*,>0P/HC-AC^B^MUW/.4<Y.(J1H_3]Y7MI>^PRI2%3-A*&.652?]7H_:
>W_=[%3`;/+,)5G&.50FJY%PG(Q(!./,%LH@G'#"1CY1M.SYDAGQ4J*&<C1V$=<?MR=%6+"  `P!I>\'K
+E=1%@D,3Q4EV<V>NJJBX2WJYBK.'\YKTI7%SF(+')$B  47HT)^\FPA(O3P41K@WY0H#YKU=A)C'<

B7
9*-G<&""\2@D9O>

0Y;^<3SX9)Q*"B:3`:8PFVR,  6(Z5%:.*4W>;E+"&A._'A(4@U"`D_P&&K(0  ?H/@
A@2*8HAA-I=$@(-<S(C8&[2KF69RC#;-P"9#R]T2.Y:%(0U(>Y7WD[C'#O;=MTBZ8]4C:;LO%^#$DOL
Y\U>_6V>^_S[HO/5F,7O\;=-6PS;3HIA83TK:VXOY>G8[,-)AL,*4*-`DT#Y0'\^9[VY3Z/.S3!!.9V
TIXQTP%,Q],E023!9,'4P0S!%,RF"&N2H-)O3F?_0+181^2
|-----------------------------------------------------------------------------|
</pre><hr />
The Great Debate:  Hurl vs. LBE's - I chose Hurl instead of Laser beam eyes, but the pwoers are switchable if you put HPT in place of hurl and LBE's in place of HPT.  Could be re-worked for Energy torrent for those who long for more AoE.  I like hurl, I have a peacebringer for my Laser Beam eye fixation  

.
Slotting - The attacks can re-slotted easily for sets, or if You want FA instead on conserve power you can slot them for endurance reduction.  I personally prefer Crushing Impacts (use them on my scrapper with great success) as they combine a very good amount of endurance, recharge and accuracy with maximum damage potential.  Also, for those who must slot IO's everywhere, Slots can be re-arranged easily, as attacks can function with only five slots in need be, HPT can be cut down 3 slots, and SoW can be removed altogether.
Strength of Will - I know, this power to most is now skippable, But I chose it for one reason:  I am a Tank first and foremost before a Scrapper.  SoW may not be the gravy it used to be, but it still kicked [censored] even after the new version took it's place.  With this build, and SoW activated, I am maxed out on Smashing lethal resistance, and have around 30% resistance to the other damage types, and 63% to psionic resists.  Those aren't bad numbers to me, and can help me take an AV alpha with much more success.
Indomitable Will - While the idea of Psionic defense does offer quite a bit to the table, you will have plenty of resists to compensate for not having this power slotted up.  I treat it as mez protection, slot it one end red and be done.  However, slots can be rearranged if you really want this power maxed out or IO'd out.
Medicine:  the Fighting pool can be substituted with Medicine pool IF you think you will need healing.  However, if done right, RttC will more than compensate for lack of a self heal, Pull the mob around a corner to herd them up, this way they're all in RttC range.
This build got me through solo groups or 8+ Ritki mobs at +2-+3 my level.  I popped SoW for the tougher bosses, and even the drones had a bit of a time hitting through my defenses (as RttC does debuf them a minor bit as well).  Is it the best build?  No, but it's cheap and easy to do.  Just my two cents.