Thanks for eveyone's responeses. I think I'll go to a dealer in the spring and at least sit on one to see if I like the feel of the '05 ZZR600 over my 500R.
Most likely the first upgrade will be a Corbin seat
if I get the bike. Also, I'll be checking with my insurance company to see how bad the damage will be over my 500R before I sell my bike and buy a new one.
Most likely the first upgrade will be a Corbin seat