I often thought a 250 would have been a better choice for me, especially in the really tight trails. With a 250 you can get a lot of satisfaction from riding it at it's limit, where as the 450 you always seem to be trying to hang onto it! lol
For shit n giggles a couple of pics of mine.
Putting a YZ tail and some aftermarket tail lights and indicators really transformed the look!
*** Oh, it's really worth getting good radiator gaurds too, saves lots of expence from stray sticks and when you drop it