I have a Dell XPS 410 that I recently just upgraded the memory in to 4 GB and the graphics card to ATI Radeon HD 5450 1 GB. It has a 375W power source, runs Windows XP and has a dual core 2.13 ghz processor. I haven't even tried the 5450 yet with games, but just from research it seems that it's on the lower end. I plan on playing The Sims 3 and Starcraft 2 mainly, so I was hoping to get something that would be perfect for those games, but not require any power upgrades. I am fairly clueless when it comes to figuring out what hardware will be compatible so I was hoping for some help. I would like to stay in the $100-150 range if possible. IDEALLY, buy off Dell because I have an acct there, but not a necessity. I've searched a little and have seen a few come up that are recommended for the 410, but no one ever says HOW they run after, just that they would be good. So I wanted to confirm. Some of them are: Radeon HD 4670 Radeon HD 4850 Radeon HD 5770 Radeon HD 5750 Not sure about any GeForce, but anything will do as long as it's compatible. I also only have a monitor that has the VGA cable. Although I thought with the adapter, it could read the DVI, but I couldn't get anything on the screen. Sorry it's a lot and if I missed anything please let me know....and thanks for any help!