Hey, I have a Specialized Hard Rock Sport Disc 29er (2010) and I am looking for a new fork. What would be a good upgrade for the bike? What things do I need to look for compatibility wise other than the wheel size. I want to go either air or hydraulic, and this is for moderate off road and mtb trail riding. Lockout would also be nice for getting to and from the trail. I have been told the stock forks are crap, and I think this will be the first upgrade that I will do.