I just got back from the bike store and was shown three bikes in my price range. The 09 Trek 4300, the 08 specialized Hardrock and the 08 Specialized Rockhopper. Both the 4300 and the Hardrock had the disk brakes. I tested all of them out for a bit and liked all of them. I was just wondering if there was one that is obviously better than the other or if it was mostly just personal preference. Also, I donít know much about the disk brakes so any info on that would be appreciated.