I am making the switch to Mac. With the new iMacs coming out today, I need some quick advice. I use my computer to surf the web, store photos, some document and spreadsheet work, listen to music, etc. I do not do any gaming at all. I would like to edit and burn home video but nothing fancy. I think it's between the 20" 2.66 and the 24" 2.66 with a lean towards the 24" given the double memory and hard drive as well as the larger screen for only an extra $200. Any thoughts? Thanks.