look at the Buell.....
.....but NOT the blast.
The XB Lightning, either the 9 or the 12. You can pick up a couple year old one in you price range, or an old stock NEW unit for a little bit more.
Go to a H-D dealership and sit on one. Ride one if they'll let ya, and see what you think. Most people fall in love with the ergos. I have been commuting on one for almost a year (the 1200) and beating the crap out of it. I'm getting MPG in the low 40's, and other than tires, gas, and oil, there is very little you need to do to these things.
And OMFingG the little beastie is fun to ride....just be prepared or attention, controversy, and to take a little crap from people about the "bear on a bicycle" thing. (I'm about 5-11 and around 250).
If it is comfortable for you to ride, consider it. Also go back thru the archives and read every shootout in which the Lightning represented. It won every. Single. Time.
Good luck and have fun!!!
Rob