After a 15 year absense an FZ1 and the like sounds like too much bike. It would be for me. The V-Strom 650 is an excellent option, fast enough to get in plenty of trouble and pass cars going 80 like they were settin' still, but not truly crazy fast like an FZ1. You'd be surprised how much fun 70 hp can be. They seem to hold their value really well too. An FZ6 might be another good option.