Which card to upgrade to...?

i would probably look at getting a 8800gts320

however out of the choice given i would go with the 7900gs or a 1950 pro

on a side note i would look at boosting that powersupply to a known brand before you play around with the GPU

If you are going for the 7900 I would suggest the EVGA card, can't offer any reason other then the company, the have great customer service. Perhaps someone else could offer more though?

Thank you for the replies so far.

so far, i suppose 7900 looks like a better idea?

Since noone mentioned the compatiility issue with older games (under dx8 and dx7), should i assume there is none?

I would just like to point out (to avoid confusion) that the compatibility issue (if any) that i am wondering about concerns the 8xxx series and not the 7900. So, are there any issues with older (dx7 & dx8) games under xp pro 32 bit? (i think i read about issues but maybe that was under vista...?)

About budget, i'm in a different country right now and prices are diferent here that's why i listed the models along with the price differences to give you a better picture: i looked around a lot and the options i list in my first message seem to be the ones i might go for (to give you an idea, 8800gts 320 start at $120 more than the XFX 7900gs). What i don't know is how much more money it's worth spending in relation to the difference i'll see from my 6600gt. Of course i'd like to go for the XFX 7900gs but it's the most expensive option. I don't know if the 7600gt (and which of the 2?) is a better choice.

get this $120 x1950pro http://www.newegg.com/Product/Prod [...] 6814102061
its a great card, ahve 2 of them in my lan party rig, i don't get any heating problems, should work fine on your powersupply too.

If my memory serves me correctly the 8800 GTS doubles the 7900 GS (at least at low res) and the difference gets bigger the higher you go.

I don't know; you can check the VGA charts.

to be honest it all depends on the games you play and th resolution that you play at however i always like to try to push the boat out a little when buying components.

a quick look at the VGA charts shows that with a 7600GT your likely to double your current performance where as a 7900gs is likely to triple your current performance.

again as i said i would try to get the cheaper 7900gs (as it is very easy to overclock yourself) considering you are already spending a little more.

teh reason i suggest this is that with crysis on the way im not really sure how a 7600 would do whilst a 7900 should be okay.

i dont like the idea of incrementle upgrading i.e get a 7600whilst you save to get 8800 as all that does is leave you a bit short changed.

i would personnally look to flog the 6600 on ebay and then get what you can afford.

Ok, so everyone thinks it's better not to go for a 7600gt but a 7900gs out of all the options i listed and paying the extra money for it?

Let's put things a little bit in perspective:
(X1950PRO)>XFX7900GS>EVGA 7900GS>8600GT>7600GT Fatality>Gainward 7600GT
I've added the 1950PRO because it is worth considering. For gaming you should go with either of the first two, otherwise get the 8600GT since it's cheaper and supports dx10. Why i wouldn't get a cheap 7900GS because they're near EOL and no matter the guarantee in a year you will want to upgrade and i'm guessing it will be easier to sell an 8600 gt than a 7900 gs (just as it's easier now to sell a 7600GT than a 6800GT).