I am looking to buy my first Mac and I am looking at a Refurb. I am a basic user who will basically use it for iTunes, browsing, torrents, word processing, video, light games, etc. I've heard good things about the i3 for the price so I am sticking with that, but I can't decide if the 27 inch is actually worth it. For $420 more, plus tax, so basically $450 the 27 inch base refurb comes with a better graphics card, higher clocked CPU (3.06 vs. 3.2) and 1 TB hd vs 500 GB. Everything else is the same besides the screen size. $450 isnt a ton of money for me, but I also don't think a bigger screen is worth the $450. If the other improvements will make a noticable difference in my use then it may be worth it. Also, my current computers HD is very full, but it is no where near 500 gb. Does 500 GB fill up fast or will I most likely not have a problem?