Hello everybody, this is a great thread for a noob like me. I am looking at 2 bikes right now for just basic trail riding but with the ability to upgrade if I get more serious.

The 2 models I am interested in are the GT Avalanche 1.0 (2003 & 2004) and the Specialized Rockhopper (2004 & 2005). After reading through this thread I am heavily leaning towards the Rockhopper and was just wondering what the differences in the '04 & '05 Rockhopper models are? Is the '05 worth the extra $$$ over the '04? Are the GT & Rockhopper easily upgraded to hyd. disc brakes? Are any of the mechanical disc brakes found on bikes in this price range worthwhile or are hydraulics the only way to go for a disc brake?

Thanks alot for any help with these questions.