I own several, but I prefer hacks for new machines. I have a 2002 iMac G4 20 Inch that now houses an Intel NUC, a 2001 Dual Processor PowerMac G4, several dead G5s, a dead MacBook Unibody, a 2009 and 2011 MacBook Pro, a 2006 Mac Pro, and a 2006 Xserve with XRAID Disk Array.