What power supply will work?

I am looking to buying this Inspiron 620 MT computer (LINK BELOW) and making it pretty good for gaming BUT the issues at hand are that the computer comes with a horrible graphics card and a power supply which is not very good for graphics card upgrades...

I have a HP m8530f and I want to upgrade the power supply on it. I am not too educated on power supplies and all that. What I want to do is add an additional SATA HD and maybe a 9800 video card and a blu-ray drive and POSSIBLY upgrade the CPU but probably...

I've tried two power supplies. One fit perfectly, I was able to seat it fine and it didn't wobble or anything when I moved the tower around, but it was apparently rated incorrectly for my motherboard and it wouldn't read my harddrive. Alright, fair enough...

I currently have a 300 Watt power supply for my computer. My friend is willing to give me either a 350 or a 450 watt depending on which one he decides to use. Is the 300 watt alone ...show more

which of these motherboards will work with my CPU? Feel free to recommend some of your favs if they're compatible. http://www.tigerdirect.com/applications/… http://www.tigerdirect.com/applications/… http://www.tigerdirect.com/applications...

what im looking at is: Core™2 Quad Processor Q6600 2.4GHz w/ 2x4MB Cache nForce 780i SLI w/ DualDDR2 1200, 7.1 Audio, Dual GB Lan, 1394, PCI-E 2.0, 3-Way SL 4GB PC2-6400 Vista Performance Gold Dual Channel DDR2 Kit (2 x 2GB) 250GB Barracuda 72...

It has to work with and fit in the computer. my computer-http://shop3.frys.com/product/5775532?site=sr:SEARCH:MAIN_RSLT_PG this information might be helpful-http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=en&cc=uk&dlc=en&docname...

I have a Ultra X2 Connect 550 Watt Power Supply http://www.ultraproducts.com/product_det… And wanting to get a SAPPHIRE Toxic 100269TXSR Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Video Card. http://www.newegg.com...

I can't afford to spend the $40.00 on the power supply. I have the power supply, but I lost the chord sometime a few months ago when switching rooms. The power supply is 2 prongs and it says 150 watts on the supply. Any off brand chords that would work...