i hope you can give me some insight. i am looking for a new computer and have narrowed it down to 13" MBP vs 13" MBA i am not a computer person. im not old, but im not young. i am set in my ways. i like the internet, message boards, and photobucket. i dont know all the computer "lingo", but i like things to run smoothly, and run when they are supposed to. with my new purchase, i am looking to replace my 2007 iMac Aluminum 20", the "base" model release at the time. this machine still runs pretty well, but is getting a little long in the tooth, and i'd like to treat myself to something new. this iMac has 1G of ram, so any machine that i get that has 4G is going to be miles faster (to me anyway) so, my question is, am *I* going to really notice anything by "upgrading" to a SSD vs the 500g Hard Drive? i appreciate you taking the time to read my post.