If you're not up to building one, here's a good deal at HP well within your budget:
Use coupon code DT9949
You can swap the 512 8600gt for a 256 8400gs and...
Could be a number of things. Do you see anything at all on the screen when you turn it on? Cmos/post test? Do you hear any beeps? Did you check if the gpu is seated properly?
Please describe problem a little bit more.
I could have saved $71. Dell must have gotten a really sweet deal from MSI to sell at this insanely cheap price. I read in one of the websites that it is bundled with dirt (the game that is) and lotr. Can't confirm this thou.
As a follow-up to moidock's suggestion, here's a better config than the hp you listed and within your budget: Total $963 + tax
Date & Time: November...