My Mac mini was my first Mac. It got me excited about the Mac and OS X. When I bought my second Mac ( a MacBook ), the Mac mini was turned in a media server. I attached it to my Sony HDTV, attached an external drive, and my wife ripped most of our music collection. We have been using it to rent movies from iTunes ( it has an Apple Wireless Keyboard and Mouse ) for the kids and as a sync station for our three iPods.
But recently the slowness of the G4 PowerPC CPU has got me thinking that perhaps the mini is over worked. I have been thinking that it's time to either replace it with a newer Intel based Mac mini ( a Core 2 Duo ) or get an Apple TV. Either way, I would have a machine more capable of handling video ( both iTunes and stuff imported via our new Sony HD camcorder ) and a way to control media without the user of a keyboard.