I bought my 2006 Jetta TDI a year and a half ago. I am doing the Timing Belt replacement very soon as well. Maybe next weekend. Its been a fantastic car and very easy to work with. I have the latest Bently Repair manual and this website for a guide. I am planning on ordering my parts from DieselGeek. I'm still researching the process, but hope to get started soon.
Cheers