I had my timing belt done at Walker Transmissions. They did a great job, are very honest, and it cost me under $700. I found them when I first got my VX as I wanted the transmission fluid changed and the transmission inspected. They did that and a couple other minor adjustments for about $300 (and told me the tranny looked to be in fantastic shape). They do any engine/drivetrain work, not just transmissions. Mine was the third VX they have worked on.
http://www.walkertrans.com/
303-421-2104
I worked with Tony both times. Great guy.
Disclaimer: I am not related to the Walker that owns the place. Although we did chat about both originally coming from England. So...I guess maybe somewhere in the distant past we are? ;-)