I have a dual 1.33 G3 xserve I use as a desktop. Since it has no audio card I use a USB audio in/out which works just fine. I also slapped in a USB 2.0 card and it makes an awesome 10.5 mac, plays 360p youtube without problems. It's downfall is being loud as hell. It covers the entire desk holding drinks, 22 inch lcd and the cat easily. If you have the room, an xserve makes a decent computer.