Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
If you are going to get pci-e (doesn't sound like it), get an X800XL. If you are sticking with AGP, get a 6800GT. They can be had for similar prices, but the 6800GT should be slightly faster. The thing about pci-e is, an X800XL can be had for $50 cheaper than a 6800GT in pci-e. So it becomes the better deal.
Anyway, look around, get the lowest priced 6800GT you can find (should be $250-280 iirc).
note: There is a false "6800GT" on Newegg for $164. It has MUCH worse memory (128mb of DDR instead of 256mb of GDDR3) and won't be much of an improvement over your 9800.