Hey Bro,

Steer Clear from Schwinn! (very clear) Definately go with a Specialized... You should look at the Rockhopper Comps... about $750 and worth every penny. If you don't need to just test the water, and you're ready to just jump in... Get an M4 Stumpjumper or an S-Works Hardtail!
Ahhhh, the S-Works Hardtail!... Oh how I do love my bike!

Good Luck Man.