[New System Build] New system/gaming rig

Hey im find new system for Gamimg
im very bad spek and word be Language English
briefly the New System what im beaver good?
and what to happen substitute
1)INTEL Core 2 Quad Q6600 2.40GHZ 8Mb SHARED CACHE BOX
2)GIGABYTE GV-NX88T512HP RETAIL GF 8800GT PCI-E 512MB DDR3 DVI+HDTV
3)COMPUCASE HEC CI-6A19-NPS BLACK MIDI ATX
4)CORSAIR CMPSU-550VXEU 550WATT ATX PSU RETAIL
5)LG GSA-GH20NS10 (B) SATA DVD WRITER BLACK OEM
6)DDR2 CORSAIR TWIN2X2048-6400C4 800Mhz CL4 2x1Gb DUAL PACK WITH EPP
7)ASUS P5K-V P-4/P-D/Core 2 Duo G33 DUAL DDR2+CROSSFIRE+DUAL LAN+VGA OR
GIGABYTE GA-EP35-DS4 Core 2 Duo/Quad FSB1333 P35 DUAL DDR2 GIGA OR
INTEL BLKDP35DPM DRAGONTAIL PEAK Core 2 Duo/QUAD P35 1333Mhz DUAL DDR2 NO PS2
Im to prefer method private GIGABYTE and no asus
If im to buy intel im buy 4gb ram
1gb*4=4gb DDR2 CORSAIR TWIN2X2048-6400C4 800Mhz CL4
Thank you! all of them
Maor Grinfeld
*im dont use be o.c!*

reply for user oushi
OK Thank you for the reply
Im to think buy GA-EP35-DS3R and no GIGABYTE GA-EP35-DS4 the same as epigram "You can save some money and get the extra ram still".
And there is to home 2 hard drive
1)500Gb 32Mb Seagate but technology sata2 (master)
2)250Gb 16mb Seagate but technology ide (Slave)