netbooks...are they any good? because im in need of a new computer and these are alot cheaper than a laptop. i'll mainly use it for itunes (syncing, buying music ect.), putting themes on my ipod, web browsing, and some social networking stuff. i've heard they don't have as much ram as a laptop would have, and i usually have itunes, msn, and a couple tabs open at once...could it handle this?