I highly reccomend the MSF course, some of my friends dont even know how a bike turns or use the rear brake (or front) while theyre turning... its pretty bad. You dont want him to be that guy.

Everyone here pretty much covered all the good points to look for, also heres another site that has some things to check for http://www.clarity.net/~adam/buying-bike.html

It might be a bit of overkill, it would take forever to look for everything there.

What part of florida are you from?? Im in Gainesville.