Hey guys- I'm a relatively new Mac owner (Sept last year) and I have about 4.5 gigs of HD space left. What do you recommend I could do to expand? I can't get another laptop but maybe some kind of portable hard drive? Is there a hard drive that could strictly house my ITUNES collection, because THAT'S what's killing my hard drive space. And then when it needs to update my ipod or what have you, it could connect to that hard drive? Any help is appreciated here, sorry I'm such a n00bie!! Thanks you guys!