I've just built a second machine, which I'd like to test distros out on. I don't have a spare optical drive, so I'd like to find out how to boot this second system over a network. I'd also just like to learn!

My main system runs FC3, and I have the hardware necessary to set up the network.

The other machine is a Shuttle SK41G which I believe supports booting off a network connection.

Does anybody have any pointers for me? I'm looking to be able to boot any bootable ISO.