upgrading the hardrock with a new fork and shifters sounds like the best bet. If you are just tired of it.. hmm there are konas. The Giant Rainier is a very good value. For $670 it has a Marzocchi MZ Race 100mm(4in) Travel w/lockout. It also has bb5s and all deore shifters. The frame will last you a lifetime at your size. I'm a fan of the aluxx sl frame on the yukon and rainier.