hey people, got a quick question, im running an a64 3200 newcastle, 1gb ram, etc...anyway, i got an x600xt this weekend from a local place, for $100..worst $100 ive ever spent, this card is worthless. cant even get 30fps in doom 3. so they have a x800xl for $300. my question is, would it be a drastic change to go to the x800xl? how does it compare to the 6800gt ive got running in my main system? i cant order online, so $300 is the best deal i can get.