Hey guys, Long time lurker, first time poster. I'm considering purchasing the 13" MBA, and i have a bunch of BestBuy credit i want to use to purchase it. Only problem is BestBuy doesn't carry any of the 4GB models...and i'm not sure they'll ever carry the 4GB in the lower end 13"s My question, for those that have the machines, is if i'd regret not getting the 4GB model...I really don't see myself spending the whole $1399 at the Apple store just to get the extra RAM, so purchasing at BestBuy makes the most sense. I'm mainly going to be using this for travel, so movies, a little photoshop and maybe some video editing in iMovie here and there. I could use it as my every day machine here at work for Office and web surfing too, but I don't see myself making a render farm with a MBA Thoughts? Suggestions?