I guess this eventually comes down to the whole HT vs. FS argument. But I still need some help. This will be my first real MTB, others have been the cheap under $300 bikes from the local sports store. I have been into road biking for some time and currently have the Ibex Aprisa which I love. I am very athletic and agressive, so I would like a bike that I will be able to keep and upgrade parts on for many years. I will be using this bike primarily for cross country, single tracks and climbing. I would also love to take some epic rides out west in the Rockies with it (30-40 mile trips with ascending/descending of 4-6000ft.). So I would like to get something that doesn't feel like I am pulling a bag of bricks with me, but yet still sturdy enough to take some abuse.