Well we just have the HD's setting in there.. they aren't connected.

You see most of our desktops.. we don't even bother with the case covers. It is open to the air(prevents some heat issues as well as allows us to change parts as desired and needed.. and whilst we don't do it much now.. we used to always be switching parts here and there).

What is connected is-
1 20GB HD(I think)
1 Floppy disk
1 CD ROM(an old one at that)
1 64MB ATI ALL-IN-WONDER card
1 Wake-on-Lan card(think it was a wake on lan anyways).

It's a 250 Watt power supply, with 10a/15a/10a on the rails(3.3v/5v/12v).

And anyways I always heard that the Amps on the rails were the important part(something about 350-400W is almost always enough.. but the rails don't always carry enough amps).