Well, this post has me hopeful. I just bought a Radeon 9500 card and a new 350w PSU to replace the 250w I currently have. Unfortunately I have a Compaq and didn't check the connectors (DOH!) until today and found that I have a 4 pin connection and a 24 pin (not 20, which seems to be the standard) connection. So, unless you can plug a 20 pin connector to a 24 pin connection without any ill effects, I've got more or less the same problem-not quite enough watts.