I just started working on a build and hope to create the character sometime tonight or tomorrow but this is what I am looking at so far:
Hero Profile:
Level 1: Gambler's Cut -- Empty(A)
Level 1: Charged Armor -- Empty(A)
Level 2: Flashing Steel -- Empty(A)
Level 4: Conductive Shield -- Empty(A)
Level 6: Hurdle -- Empty(A)
Level 8: Build Up -- Empty(A)
Level 10: Combat Jumping -- Empty(A)
Level 12: Divine Avalanche -- Empty(A)
Level 14: Static Shield -- Empty(A)
Level 16: Health -- Empty(A)
Level 18: Super Jump -- Empty(A)
Level 20: Lightning Field -- Empty(A)
Level 22: The Lotus Drops -- Empty(A)
Level 24: Stamina -- Empty(A)
Level 26: Soaring Dragon -- Empty (A)
I originally went with SotW on my Kat/DA and switched over to G.C. during the respec and never regretted it at all. I left the damage aura for 20 because I tend to get into way too much trouble with it prior. By the time I hit 20 I am usually moving along pretty well and extra aggro does not bother me.
Note though that I did not say mine was better, I probably just have a different playing style. For the higher levels I am planning on going with Kick, Tough, and Weave plus Conserve Power and Physical Perfection.
Oh I plan on Lightning Reflexes @ 28 so I opted to not take Hasten and will add some +rech in my IO build.
The main problem I see is that you dont have Conductive Shield yet. That's your resistance toggle vs Cold, Fire, Energy and Negative. I'd get that soon. The main problem is that you have 4 powers you'll be wanting to get before level 32, but you'll only get 3 more powers before then (at 26, 28, and 30). Conductive Shield, Soaring Dragon, Energize and Lightning Reflexes. Decisions, Decisions, eh? 
If it were me, I'd take Conductive Shield at 26, Soaring Dragon at 28, Energize at 30, and Golden Dragonfly at 32. Then at 35 and 38 you can take Power Sink and Lightning Reflexes in whatever order you prefer.
I've never played a scrapper with a pure resist set (Dark, Elec, Fire). I'm totally spoiled on soft-capped Super Reflexes builds and Willpower builds. Can anyone comment on how the pure resist sets perform? I'm afraid I'll get eaten alive, but I've been tempted to make Elec/Fire and Dark/Elec.
Lewis
Random AT Generation!
"I remember... the Alamo." -- Pee-wee Herman
"Oh don't worry. I always leave things to the last moment." -- The Doctor
"Telescopes are time machines." -- Carl Sagan
Ive been working on a katana/elec build on my scrapper. Hes lvl 24 right now and does anyone have a better build? Heres my current build:
Hero Plan by Mids' Hero Designer 1.601
http://www.cohplanner.com/
Click this DataLink to open the build!
Exit Point: Level 23 Technology Scrapper
Primary Power Set: Katana
Secondary Power Set: Electric Armor
Power Pool: Fitness
Power Pool: Speed
Hero Profile:
Level 1: Sting of the Wasp -- Empty(A)
Level 1: Charged Armor -- Empty(A)
Level 2: Flashing Steel -- Empty(A)
Level 4: Lightning Field -- Empty(A)
Level 6: Build Up -- Empty(A)
Level 8: Swift -- Empty(A)
Level 10: Divine Avalanche -- Empty(A)
Level 12: Hasten -- Empty(A)
Level 14: Static Shield -- Empty(A)
Level 16: Super Speed -- Empty(A)
Level 18: Health -- Empty(A)
Level 20: The Lotus Drops -- Empty(A)
Level 22: Grounded -- Empty(A)
Level 24: Stamina -- Empty(A)
Level 26: [Empty]
Level 28: [Empty]
Level 30: [Empty]
Level 32: [Empty]
Level 35: [Empty]
Level 38: [Empty]
Level 41: [Empty]
Level 44: [Empty]
Level 47: [Empty]
Level 49: [Empty]
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Critical Hit
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Set Bonus Totals: