Case: Last Two Pieces of my Puzzle!

I will shortly be building an I7 920 mildly overclocked (3.3 - 3.4), 2 sli 275 gtx, 6 GB of ram, with 2 dvds and 2 hds. I am a fan of Crysis Warlock and of Far Cry 2!

I am looking at 2 cases:

1) Antec 902 and,

2) CM 690 with optional window
http://www.antonline.com/p_RA-690-KWN2-GP-NX_586943.htm

The Antec does have air filters but I am not crazy of the design. However, I could live with it.

The CM will require additional fans but with the optional window it looks classy.

My question is twofold:

Which case would be the better one for my set up?

What size PSU (Corsair of course)?

Thanks in advance.

pinibo