You guys recommending 4770/4830/regular 9800gt are missing something very important
His PSU will have no PCI-e connector, nor molex connectors for a molex -> pci-e adapter
OP, you need to make SURE that the card you buy doesn't need a pci-e power connector or it will not work in your PC. This means your only good options for gaming are HD4670 or 9800GT EE. None of the 4670's need a power connector, and are cheaper, but are also a couple steps slower. The 9800GT EE will be noticably faster, but is more expensive. If you go for the 9800, be *sure* that the model you order lacks the pci-e connector, because most 9800's still require them
*Please ignore the above paragpraph about pci-e power*
I just read in one of your other threads that somehow you managed to get two unused molex connectors in your Dell PSU, which I haven't seen in years. This means you can support up to 1 6 pin pci-e card, which changes the recommendations entirely. With this new knowledge I recommend picking up an ATI 4850. It will be faster than any of the cards you have mentioned in your several threads, as well as being cheaper than some of them (theres an XFX on newegg for $85 AR with lifetime warranty and custom dual slot cooler)
Also I feel the need to add...
Please calm the hell down. It is very unnecessary to make 5 different threads basically all asking the same question. If you happen to not be able to order one tonight your head will in fact *not* explode, and you can trust me on that
Make more unnecessary threads and you will likely get a warning from one of the mods. Try to keep everything to one thread, unless they are two very different topics. Then you would be able to make two valid threads