At stock speeds its a bit of a toss up between the 7600GT and the X1800GTO, but when overclocking gets involved the X1800GTO wins hands down. However, that being said if the OP just wants a good cheap card to hold them over until DX10 and the new DX10 cards, then that 7600GT for $80.00 after rebate is the better deal. You're getting about 90% of the overclocked X1800GTOs performance for about 70% of it's cost. That margin only gets better if you overclock the 7600GT. Send in the rebate and make sure to follow their instructions to the letter and follow up on it like crazy.
I really don't know how to Overclock so I mean if it was something really easy to do yea I would overclock but if it isnt... then I guess I will go with the cheap card... hehe
Yeah Overclocking is a snap (for video cards) just install coolbits/ATI Tool and go to town on the sliders until you get artifacts/random reboots. Of course its not that simple but that pretty much the jist of it. make sure you have a PSU to support that overclock though!
Would that X1800GTO be able OC higher than my X850XT? The X850XT is faster at stock (16 pipes, 520/540 vs. 12 pipes, 500/500) but I don't know much about the X1800GTO's OCing capabilities... I got my X850XT for $120 and it's OCed pretty good I think.
Sadly, I don't think Sapphire makes the X850XT anymore.
Personally, I think the difference between the two is not huge. I'd get whichever one you can get signficantly (20$ or more difference) cheaper, since budget is the main concern here.
The main advantage the 7600GT will have over the GTO is that it consumes well under 65W at peak (I won't bother finding all the links now, but I have no reason to lie). If you're upgrading an older rig with some no-name 300-350W PSU, you're less likely to run into stability problems.
The ATI cards are known to be more power-hungry (at least in this current generation), the x1800 is no exception.
I'm sorry to hear that NamelessMC but it is still up to you to follow through with it. You need to give yourself some sort of reminder about 4 weeks down the road to follow up on it. Make a copy of the rebate form because it will have the website or phone number on it for you to make contact with them. You have to hound these organizations because part of their strategy is to rely on you forgeting about the rebate. Unfortunately rebates don't always come free because you have to work for them.