Abso****intuckinglutely I'd buy that. What kind of price were you thinking of? I'm trying to find smth in the range of 200-300. Or lower, duh :P I think an fx1600m would work in there, or any older card that fit the inspiron. That's the beauty of the inspirons they were great.
Ask around, but I'm pretty sure this'll fit and work. Just ask on one of the forums, Usually dell is abckwards compatible and im pretty sure this one's the right form factor and fairly cheap.http://cgi.ebay.ca/ws/eBayISAPI.dll?...m=330421729394
This ones even CHEAPER but I'm not sure about it supporting high reses. There was talk on a forum about that around here somewhere.http://cgi.ebay.ca/Dell-Inspiron-600...item439f14ac1a
However this one would probably be your best bet if you're not gaming anymore.http://cgi.ebay.ca/Dell-Inspiron-930...item519242ed6b
Mind telling me what kind of temperatures you usually hit and if you overclock it at all? Like gaming vs. idle temperatures, and if you use powermizer to downclock it or not.