I've owned it for a couple months. I've downloaded stuff, installed stuff, but mainly whacked stuff onto an external HD to keep my lappy's free. Out of the 250gb I've somehow used 100gb and I can't think on what. I have a couple of films on there, Sims 3, Adobe Photoshop, Microsoft office etc, but that's not 100gb surely? How much space does the stuff that's already there take up? It used to be super quick boot up, but yesterday it took about 50 seconds. I downloaded Sophos and ran a scan to check for any malware or whatever, and of course nothing came up. It's also been freezing a little bit when switching between Safari tabs which never happened before. I ran Activity Monitor and nothing is running high or anything. Hmm? EDIT - Might be an obvious thing, but should I just wipe Safari's cookies and all that?