I have an old school Dell GXa sitting around. All the hardware is obviously obsolete but the case is in good shape. I would consider purchasing a newer motherboard (P4 or better) for it and giving it to one of my friends if I knew what kind of board it took. I have been looking on Wikipedia in an attempt to see what form factor the motherboard is but I cannot find it. The bottom half of the board accepts another smaller board (I believe it is called a "daughterboard") which slides in at a 90 degree angle. Here is a picture of what it looks like:

