Mac Minis are alright,If you like the Mac OS-Lot more stable less crashes apparently.(might be good for biking? Wire less key board and mouse-jobs a goodun!)
Arhem!
Urmmm My mates have had spesh Computers and broken 3 of them.
Try Blackburn or Cat eye?
You get what you pay for.
I ride with out a computer I gauge my rides by how much I'm smiling and how I feel about my speed. Work out distances later on Map.
The only reason I ask is I bought a GPS and it does everything a computer ans tells me how to get home, how much I've climbed, allows me to map my route, etc etc etc. But you do need to spend a bit more.