Didn't notice the 2 next to your HDD selection. ><
As for the CFing the 6870s (coincidentally found after you pointed out the 2hdds), I've heard CF is pretty useless/not supported in alot of games. (mainly due to viiral nerdraging and darksin backing him up)
You might want to reconsider a single 6870 or 6970. A single 6970 is cheaper than 2 6870s either way.
General rule of thumb is that a single card is better anyways.
Other than this everything seems fine.
