Nice bike
The stock brakes are OK till you do some narly downhill type stuff. I don't know what type of riding you are planning on doing but if you doing long (15-20) down hill sections get some better brakes. Your hands will thank you later. Avids dics mechs are cheap and work damn good for DH stuff
did I mention they look good too
What size frame did you get? I don't think you'll have a prob with you knees hitting the handlebars or shifters but if you do, get a longer stem and higher riser bars. These makes a world of difference climbing steep stuff off the saddle.
Have fun with the new toy. Take some action pics when u can