My relatively new Sony (3GHz, 1GB RAM) uses Intel's GMA 900 Integrated Graphics. I do no gaming but lots of video editing. I'd like a dedicated graphics card using the PCI express slot that's available so that I can use some of Adobe Premier Elements features that the 900 can't handle. Also a "TV out" to fully utilize Media Center Edition capabilities. But... Power supply of 305W seems to limit me to 2 year old cards that may not be an improvement (geForce PCX 5750, for example). Should I forget it?