Will either of the 6870s fit into my case

Thanks for the quick reply. Parts I have bought so far.
i3570k / GA-Z77X-ud3h / G Skill Ripjaws 2*4gb ddr3 1600 / WD Cavier black 1TB / Rosewill Capstone-550 550w / Rosewill challenger black gaming mid tower

Only the graphics card is pending. Budget for that is $150. Any good recommendations?
Might do a bit overclocking. Will the build do well?

Looks like a pretty solid build, yet if you plan to overclock in the future, you are definitely going to need an aftermarket cooler for that i5, since they run hot compared to the older models.

If you just want to keep the build at stock right now, and overclock later with an aftermarket cooler, that would be idea for your budget, because then you wouldn't have to subtract from your graphics card budget for the cooler.

As for the graphics card, if you still want to spring for the 6870, then go for it. Its a great card, my buddy has one. Plays everything he wants at the highest it goes.

Best answer selected by T2Space.

Thanks for the suggestions. Will monitor the cpu temperature first and then decide whether do oc or not.