It will physically plug into your board and work, and work well with the processor/memory you have.
Couple of questions. Why would you want to buy such an old card, although it is a fast card, there are newer cards now that are faster, run cooler, and use much less power, and are rated for the latest DX version, which is 11.
Which brings us to question #2, what power supply do you have? This card takes a solid PSU to run it. You need a solid name brand PSU at least 550-600 watts very minimum.
#3, And lastly, what do want to do with it? There is a big difference between the 8800ultra and a quadro depending on your usage.
Oh, and welcome to the forums, and it is not generally a good idea to post your email on a public forum, unless you want it harvested by a multitude of junk email sources who will flood your inbox with spam.