well all, I ended up getting a 1920x1080 monitor and a new EVGA GTX460. My specs are now:
ASUS VPRO Motherboard
16 GB RAM
Two (2) GTX 460 SLI
Dell SR220L Monitor (1920 x 1080)
The Battelfield 3 beta runs extremely well with this set up...high settings and no FPS problems.