I built my Pi's with a hammer, a jig saw, a chop saw (most convenient thing since our table saw sucks) a drill with drill bits and and screw bits as well... A screwdriver, a rip file, and a couple other tools I think.

I had home depot cut most of the wood on their panel saw. I HIGHLY recommend doing this, as the saw tends to be very accurate and you can return the wood if the cuts are bad. You can also get even a lot of cuts cheap if you are a nice and patient person, in most cases anyway.

It'd be silly to not use a 10,000 dollar panel saw instead of a 400 dollar table saw...

Anyway, that was my main list of tools, although I haven't finished them all up quite yet.

Adam