Ok so, I've got a Dell Dimension 3000, 2.8GHz Pentium 4, 512mb ram. Im doing an upgrade due to my lack of a video card and sufficient ram for games. *I'm upgrading strictly for gaming* I'm adding ram, going to have a total of 2gigs. Did it on crucial and it should work fine. Now as many of you already know the Dimension 3000 only has PCI video card slots. So, I did some research and found the best possible card for my mobo. (At least I think) The x1550: http://www.newegg.com/Product/Product.asp?Item=N82E16814103031 And just recently I saw this: http://www.hexus.net/content/item.php?item=8982 But can't find it anywhere in stores, could someone show me where that is available? To my knowledge that would be better than the x1550, right? Also, what kind of Shaders and Vertex shaders do these have? Well assuming I'm getting the x1550 how do I determine if the video card is compatible with my monitor? *This is my main concern* Another question, again assuming I'm getting the x1550, I see the recommended PSU is 420W. Now, my original dell PSU is a 250W. So I'm convinced theres no way I'll be running this card without a PSU upgrade. I went to pcpower cooling's site, went to the compatible PSU's for my dimension 3000 and found this: http://www.pcpower.com/Dell/Dimension/Dimension-3000.html I've read about alot of PSU's falsely stating the wattage due to some rubbish about the ampage on the 12v rail or something, can someone notify me if this is a legit card for my system? *edit: I noticed the specs for the PSU say it comes with a PCI-E connecter, does that mean it wont connect to my PCI slot??* Also do I absolutely need the PSU upgrade or should I get the video card and see if it will run without it first? Thanks to whoever reads this and can answer my questions.