I was wondering if the new 1GB e-GeForce 7950 GX2 will work with the DFI LanParty UT nF4 Ultra-D perfectly or if there are any problems that could come up. I was also wondering if I would need to download a new bios for my motherboard. I heard that floating around different forums but i dont think its true. Also will I be able to put another 7950 in my board if i mod it to sli?

Do you think going with 1 7950 is better than 2 7900gt's with having to mod board?

7950 should work just fun on the Ultra - D as it (7950) does not require a SLI motherboard to operate.

Go with 7950 or dual 7900GTs.......this I am not sure, check the benchmarks on which will perform better I guess and the price differences.
Going with dual 7900GTs means that you'll have to modify the Ultra - D to SLI - D.

Yes. The 7950 is basically two 7900 GT's in one package. Its big advantage is that one 7950 costs less then two 7900's, plus it only there are no extra cables, etc to hook up, and its there all the time, not just when you have SLI enabled.

Ok, well it looks like im going with a 7950 then. Im going to do the step up program from evga. The only major thing i was worried about was if i would have to update bios and how stable the card is. I cant go with out my games. It looks like the bios will be fine, now im just wondering how many bugs the drivers will have.

Oh and one more thing, a 7950 requires an amperage of 28 on the +12v rail. My PSU(550w) has dual +12V output circuits. One says +12V1 at 19amps and the other says +12v2 at 19amps. So im thinking added together that equals 38 amps on the +12v right?