Which ASUS? A8N-E,A8N-sli,A8N-sliDlux,A8N-sliPrem ?

Building a rig and having dif deciding on mobo. Will be used mostly for multi-player gamin. Die-hard SOF2 player now but would like to play Quake4, FEAR and Cod2. Have chosen AMD64 3,700+ and ATI x850xt cause both have great core with lots of oc potential, and good price. Had decided on A8N-E because not usin sli, but trin to do a lil 'future proofin' so also lookin at others. Seems bigest prob in reviews is heatsink fan and no firewire on the -E. Looked at the Premium and read reviews that overheats alot. Should i just decide now if im gonna use sli in future and go with A8N-E ? and does it performe ok with oc?

Usin corsair XMS 2GB (2x1gb)DDR400 for mem
WD 1600SD/160GB/7,200/8mb/serialATA150 for HD

Still need a case and psu that can keep in future upgrades.

Would also like to have the option of removin fans and adding block and H2O.

Any help on mobo, case and psu appriciated