GA 965p-DS4 ...HELP NEEDED B4 BUY IT

[bigspin]

I'm from sri lanka ..Guys I have $4000.Going to build new gaming rig.I need some help about this.....

1. How can i use Corsair TWIN2X2048-8500C5 2GB (2x XMS2 1GB) Ram on DS4 mobo????

I'm planing 2 add Quad core and DX 10 hi end card when they are out.

2. Is this MOBO support upcoming quad core???What type of PSU is better for quad core & DX 10 hi-end card(OCZ 700W/SilverStone ST85ZF 850W )

My dream system specs are above,,,

Quad-core (going to use gigabyte water cooler)
GIGABYTE 965P-DS4 mobo
2GB DDR 8500RAM
120x 2 WD 7200 HDD ON RAID 0
320GB HDD AS A BACKUP
DX 10 card
AUDIGY X-FI CARD

 

[vsamaco]

p965 only support ddr2 800mhz, so the memory will probably down clock.

I think the dq6 is the only gigabyte mobos that supports quadcore.