Need help choosing first proper bike. £750 budget. Hardtail

BigDaveLFC Posts: 12
edited November 2009 in MTB beginners
Hi there.

I've been reading these forums for a while now and have now decided its time I joined. I am 17 years old and 6 foot 3 and am looking to get myself a new bike (obviously). I have max budget of £750. I would like a hardtail that will be light enough to handle some XC but still stirdy enough to survive some abuse. I would also like the ability to make a few upgrades here and there at some later point. Now after looking around a bit I was thinking about a few differnet bikes and was just wondering what you guys think:

Cannondale Trail SL 4 2010 Mountain Bike:

Trek 6000 Disc E 2010 Mountain Bike:

GT Avalanche 1.0 Disc 2009 Mountain Bike:

Scott Scale 50:

I am also open to any other offers you guys may have.