Would you mind an alternative suggestion? If the rig detailed on your website is up to date, I'd just go with an Antec 350w power supply. I'm running an AMD 64 3200+, an optical drive, floppy, 120 GB WD SE drive, Geforce3 and 2x512MB of RAM all on the Antec. It's just humming along no problem. I have no doubts it will handle my second 120GB drive and another optical device.
Now I'm going to editorialize a bit so I hope I don't offend anyone...
There are valid reasons for getting a super power supply but I think the trend really took off when the AMD Athlons first came out. The stand by amperage on the ATX power supplies wasn't up to snuff on the lower wattage ones (and even some of the higher wattage ones) so a super power supply was basically required. Now the lower end power supplies have plenty of amps on the required rails.
That's my 50 cents ;0.