I'm from Golden, CO, just down the road from you.
I have a 2005 that I bought from Excel Motorsports. Excel Yamaha has been purchased by a family and the combined Yamaha, Kawasaki, Victory, etc. dealer moved about a mile east on Colfax on the south side of the street.
I can't tell you anything about the new dealership, but Excel was just OK to deal with. They were pushy and wanted to add all sorts of costs to the list price. I walked out the door after telling them I had to think it over during lunch. They called me and knocked off the dealer prep, paperwork processing costs (the biggest piece of BS), and $800.
If I were to get an '07 or '08, I would shop around the various dealerships. Sun Motorsports is good but only carries Honda and Kawasaki.
Feel free to email me. We could set up a time when you could take a look at my bike and see what I think are the important accessories.
Regards,
Ron