Ive been reading a lot and I pretty much know what to look for as far as decent components. My main concern is getting a bike that will hold up. Like I said, I do mostly aggressive XC and some drops, some pretty big but with smooth landings. Im almost 6' and about 175lb. I just want a decent bike that is going to hold up and last a while. Weight is not that big of an issue, however I dont want something thats 40lb. Also remember Id like to keep it under $600.