What Power Supply do I need?

I'm wondering if there's a guide anywhere that will tell me based on componants I have, how much wattage I'm using, and what size power supply I should have. I know for example, an Antec 350 watt powersupply, and a no name brand 400 watt power supply, would probably give the same performance because the cheapo one wouldn't be as high quality as the Antec one. I don't have a TON of stuff... but I check on a web site that gave approximate wattages, and I added up everything I could, and it came out to about 260 watts, which doesn't seem right, since I have an AMD XP1700+, 512 mb DDR ram, GF4 Ti4200 video card, IDE DVD-ROM, IDE CDRW, 7200 RPM IDE hard drive, NIC, sound card, floppy drive, 4 case fans, and 2 USB devices that use about 15 watts combined.
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  1. Try these:

    <A HREF="http://www.pcpowerandcooling.com/maxpc/cases.htm" target="_new">Link 1</A>

    <A HREF="http://users.erols.com/chare/elec.htm" target="_new">Link 2</A>

    <b><font color=blue>~ Gotta question? Tried searching the boards first? Good! Ask away! ~<font color=blue></b> :wink:
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