MB, CPU, and RAM Dance...

[RIRed48]

Currently, have socket 775 / Asus P5B-D / E8400 cpu oc'd to 3.6...

Want to get 1366 / Asus R3E, with which cpu, i7-930? And which memory? This is strictly a gaming PC for my son and me...Budget upto @ $1,200.

Components I already have to switch into the new rig:
Intel X25 160 gig SSD
ATI Saphire 5870
Corsair 850 PS
Lian Li A16 mid case
Creative X-Fi Music sound card

Thx for thoughts...