Help me build my computer!

I'v been slowly upgrading my desktop through the years but i'v reached a critical point. The upgrades I have made thus far consist of: Nvid 275, 8 gb memory, and a 1200w powah supply.

So now that I am looking at what I'm guessing would/should be: a new tower, a new motherboard, another 275 to sli and maybe liquid cooling?

I am learning as i go and any suggestions would be greatly appreciated. If any additional info is required please let me know. Thanks!

PS. For bonus points what fps should i expect from this setup playing in ultramode on the advanced end?

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More detail of what you actually have would be good. Like a full system spec so we know where you're starting from. Is this a custom rig or a manufactured machine (Dell, etc) you've upgraded? As for a second 275 for SLI, don't bother unless you play other games. CoH doesn't support it so it won't get you anywhere. If you want to upgrade the video for CoH, upgrade the 275 to something better. But a 275 should be able to handle UM with decent results.

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