-> DFI LANPARTY DK X48-T2RS Crossfire motherboard
-> PALiT NE/960TSX0252 GeForce 9600GT SONIC SLI video card
A bit of a mis-match on motherboard type and video card type? Did you consider ATI video cards for that CF motherboard?
Or do you want to match the GF 9600GT with a motherboard that will allow you to use 2 in SLI? ASUS P5N-D 750I SLI MB
WR2 is right. No point in combining Crossfire mobo+nVidia GPU. Your PSU is good enough for either Crossfire or SLI, just decide which one you want.
Also, if you're going to do SLI later, get a high-end card for now, not the 9600GT.
If you want Crossfire, change the video card to HD 3870 or HD 3870X2.
If you want SLI, change the mobo to eVGA 780i and the video card to 8800GTS 512MB.
If you want a single video card, change the mobo to GA-EP35-DS3R for example, and get a 8800GTS 512MB or HD 3870X2.