I was really enamored with the (Indian) RE Continental GT in it's single cylinder format but I absolutely could not deal with 20-something HP. The first one I saw was when we were at the IOM for the Manx GP some years back; I thought it was about the coolest looking bike around! The current one doesn't match the single for looks but, of course, it has some decent power...about the same as our Commandos.
Speaking of the IOM/Manx GP, we're flying there tomorrow for the week...really cool! Any Moto-heads should go the the IOM at least once. I prefer the Manx GP to the TT; it's slightly less manic!