About the vette, make sure you swing by one of the corvetteforum (.com) and read about the vehicle before you jump in a buy - and hate it.

From what I know - C5Z:
Seats SUCK - plan on getting new seats.
Minor rattle issues, check the forums to find most of em
Traction control is a bit rudimentary and slightly intrusive.

By the way, would you consider a C6 vette? I'm sure you could get one almost new (<5k miles) for low 30s if you looked. It has a 430HP motor and its faster than the C5 Z06.

You certainly dont have a bad choice here either way