I have a quick question for the knowledgeable folks here regarding an SSD installation (Crucial M4/256GB). I recently purchased the base model 13" classic MacBook Pro that comes with a 512MB mechanical hard drive. I had originally intended on pulling out the optical drive and putting an SSD in with an adapter. However, the more I have thought about it, I realize I won't need that much space at all, and am thinking about just swapping out the current mechanical hard drive with the Crucial M4 SSD. Do I need any sort of adapter to do this, or do I just need the SSD itself? I figure if I ever do run out of space, I can then go ahead and install a second SSD where the optical drive currently resides. However, I figure I might as well keep the optical drive for now until that happens (if ever). Any help here is greatly appreciated.