I was looking at this macbook air in the refurb store http://store.apple.com/us/product/FC968LL/A and I was wondering if 2gb of RAM would be enough? I don't really need to "future proof" it because I'll probably upgrade in 2 years. The activities I will do include 2-5 safari tabs open, Office for Mac maybe a word document or powerpoint(not presenting with this computer), iTunes wifi sync with iPhone, iPhoto slideshow(not often), AirPlay mirroring(maybe?), iMovie(probably once every 4-5 months), POSSIBLY a Windows XP VM for Office 2003(just 512mb of ram). Also, will using a swap file impact performance? Thanks! If not, I may just get the mini but I had my eyes set on this air. Also, usually safari and a word document will be open at the same time.