Simple Power Supply Question, Help Please

Well my 300w power supply that came with the computer obviosuly has to upgraded in order to run an ati 1900 or nvdia 7900 series graphics card. I want at least a 500w power supply that isn't too much money. I hear that amps is the biggest thing so I've only been looking for PSUs that have at least 25a at 12v. My computer has 1 ATA hard drive, 1 CD/DVD rom, an athlon X2 3800 CPU, and 1 gig of RAM. So I have 2 questions:

1. What would the best power PSU for my setup be? I don't intend to get another hard drive or CD rom but do what to eventually get more ram and possibly upgrade my CPU.

2. How do I connect the graphics card to the PSU? I'm still looking over different graphics cards so I can decide which one to get, and all of the high end cards need to connect to the PSU. There are a few PSUs that come with pci-e 6 pin connectors. But for the ones that don't come with that...can I still connect the card to it? All of the PSUs say that come with a sertain amoutn of peripherals...is that where you connect it to? Because I know most of the cards come with adaptors that on one end have a 6 pin connection (for the card itself) and at the other end it turns into a clear connection with I believe 4 pins, where do you hook that into?

Thanks for the help in advance, I just want to get a good gaming system to run flight simulator X on really good settings.

 

Well, I would say around 450-500 watts would be best but the highest possible for your budget would be best. I would go with a 12v but thats jsut me. It should be enough to supply your system with the needed power.

 

Without giving your address where is your home turf. I buy PS in Dallas for around $15. They are generic, but I haven't had any problems with them, after around 20 or so over the years for friends and family. I notice Staples is even carrying them, at a higher cost (around $60).

 

http://forums.majorgeeks.com/showthread.php?t=106835