Ok so i have been looking around to graphics cards Iv decided on this one AMD Radeon HD 6450 Graphics because its the best i can afford at this time. I'm not 100% postive my computer can take it. I have a Hp compaq dc5850 microtower. My specs are windows vista 32 Bit, ATI Radeon 3100 Graphics, AMD Phenom(tm) 9850B Quad-Core Processor 2.5 GHZ 4 GB memory and a 300 watt power supply. Im upgrading to windows 7 64 and and upgrading my power supply but i don,t know it the card will work in my system. If u need more info please ask.Also if you think i should do something to better my system please tell me but i am on a budget.