In reply to balmybaldwin:
I'm a huge fan of 29ers. Getting an FS 29er 4 years ago was a revelation and made me far more keen and excited about MTB than at any time in the 20 years i've been doing it. Last year i got an HT to give me a spare and love that too, but if i had to choose just one it would be the FS.
But I'm 6'4 and into Xc and endurance, so a 29er is a no-brainer. If you are shorter and into DH, it may be different.
The other thing to say is that I think they work really well in the Peak and the dales, but even so the shops in Sheffield have been reluctant to stock them. Just back from the lakes and the shops up there still don't seem to have many 29er bikes and even less parts - one very big shop had just one 29er tyre. This, I was told, was due to lack of demand - the steep and rocky nature of the climbs, and the amount of carrying you do on some routes (routes which I admit to avoiding), allegedly put 29ers at a disadvantage. Allegedly...