I'm certainly partial to the Nighthawk 750...I bought a '93 as my first bike.
When I bought it, it had 14700 miles; this morning I turned 16500, and I've had it for less than 9 weeks.
I commute everyday on the interstate for about 24 miles each way. I push 70-80 mph and still have the power to pass without straining.

This is MY perfect bike; plenty of power delivered thru a consistant powerband...very forgiving.
I found this, after much searching, on Craigslist.com. Had to travel from Atlanta to Albany, Ga and gave up $1700 cash...the good deals are out there if you're patient.