I've been hearing that for years RAAM! Unless you're really after the weight savings--in the world of Shimano at least--XT is probably a better bet.
RidetheRAAM4 said:
if you are a weight weenie then go for the XTR, but XTR and XT are basically the same except XTR is lighter, but XT is more durable.....I had a XTR rear derailler, but switched it out with an XT because I kept having problems with it
Don't be afraid to call Jenson's help line, they are give great advice on parts and compatibility.
Like Von-Skippidy-Doo-Da, I have been really happy with the RaceFace crankset that came stock on the Rocky. I'm sure they aren't the lightest, strongest, stiffest, etc. out there, but--knock on wood--they've given me zero problems in almost 2 years, they have held up, and worn (or is it not worn?) very well.
Not sure exactly what to tell you RSMLA. I felt that your mechanical problems to date weren't very serious...that stuff happens to all of us when our bikes get old (for those that keep bikes long enough) and are well ridden. All the moving parts will wear-out over time and will need to be replaced at some point. But it sounds like this chain suck thing may be pervasive in the frame design and might haunt you through all sorts of upgrades and tweaks.
As they say, a$$holes and opinions, we've all got them, so here's my opinion: Since you've already put some thought and cash into upgrades I'd consider getting a decent set of cranks/BB/cassette so I have something to ride, then I'd start shopping for frames...I know some shops around here (Adreneline at least) will work with you on a build kit, so you can take off the wheelset (and anything else you would want to salvage) since you already have a new one. To name two: Price Point has those 4" Sette Riddik frames for cheap and Wheelworld has Dawg Primos at a decent price.
Of course, I've already been severly bitten by the bug and cannot go X amount of time without a ride....
Alternatively, you can say F$%K-IT and just get a whole new complete bike and swap out or keep what you have for the inevitable second bike we all end up with....=P~ I know the Path had a decently equipped Medium Turner 5-spot recently!=P~ Or see if Performance has anything on sale. I got my Rocky for like 50% off retail at SuperGo. I prefer to support the ma' and pop operation, but that price just couldn't be beat at the time.