Out playing on the raid the other day and looked in on a friend who runs a bike shop and seen this http://www.borderbikes.com/product_detail.php?id=413
Very tempted, was offered a fair price for the ttr as well.
Entirely depends on what you want to use your bike for. If you want to do enduros and be competitive then the Gas Gas is a contender but, for trail riding, the TTR scores highly - plus its easy to work on and get spares for