What capacity power supply do you recommend?

I was thinking of buying a new ATX case but was wondering how big a power supply I should get. I like the ANTEC line.
This computer would have an AMD Duron (up to 1 ghz) CPU, 128 megs SDRAM, HP 8X CD burner, floppy drive, 32 Meg 4X AGP (not overclocked), CD ROM drive, 2 ATA 100 (7200 rpm) hard drives, Diamond MX300 sound card, PCI Network card, supply and exhaust fans, slot fan (next to video card), and CPU cooler.
I saw 400 W power supplies being sold the other day at CompUSA and was wondering if they really need to be that large.

1. RE: What capacity power supply do you recommend?
lbyard Mar-21-01 05:55 PM
In response to message 0

The Antec 300 Watt supply should do the trick. I like them also. The power supply fan shuts down if not needed. The only thing I don’t like about it is there is no extra power switch on the back of the supply like many on the market. But that’s no big deal—just sort of handy when building, upgrading, or troubleshooting the computer. . Just built a new 1.1 gig Athlon computer with that power supply in a KS282 case. I built a loaded computer with that case and power supply quite some time ago. You can see it here: http://duxcw.com/digest/Howto/buildcom/athlon/ath_1.htm. Larry

2. RE: What capacity power supply do you recommend?
copperpipe Mar-21-01 09:22 PM
In response to message 1

Larry,
Thank you for your response. I read your detailed review of the Antec a while ago and that was a strong force that steered me towards them. Unfortunately, I had forgotten where I had read that review. CompUSA sells that very model for $79.
By the way, since you now have your Athlon powerhouse, I'd be more than happy to dispose of your aging Epox socket 7 ATX unit. )

3. RE: What capacity power supply do you recommend?
lbyard Mar-22-01 12:54 PM
In response to message 2

Wish it were my powerhouse. I built the computer for a customer. Larry