I'm 15, 16 in January as well, but I'm a little heavier (140lbs). This is also going to be my first season on hardboots so I have yet to ride a board but I'll share with you the gear I'm getting to give you an idea of what someone else in the same situation bought. I ordered a Donek FCII 163 (should come mid nov. I can't wait!), I'm getting some TD2's with the yellow erings, and I bought some super soft Raichle SB222's (I spent all my $$$ on the board and bindings :D). Oh and you said you outgrew your old board? The appropriate snowboard is determined mostly by weight, length only affects how the board performes in reguards to stability and turnyness, length has nothing to do with how compatable you are with the board. So unless the board feels too soft you could probably get away with using your old board and just getting new boots and bindings.