Well I ran into a problem last night.

I'm currently on the old pc with xp on it.
My new pc that has vista home premium and norton(which sux!) got a virus and trashed the system. I have a legit copy of vista business so I figured I'd just delete the partitions(including the recovery) and install vista biz. Well, that didn't work out to well.. Apparently HP's suck and have some Err2Err3 error message whenever I try to do that.
I can install a copy of xp pro, but then when I put the vista biz cd in, it doesn't recognize it.
Long story short, I'd ordered a new recovery cd, it should be here the 4th.
Until I get the new pc set back up with vista and all my files, the server is on hold.
I'm still interested in server option though, so keep the suggestions coming.
As for bdude's suggestion to use the same setup that our host uses.. I'm not entirely sure I'll be with these guys much longer. It might be time to upgrade plans and just go with our own server.