I find this class attractive since most people have a 21.5 that they won't be using any longer after Sept 1. I'm sure you can pick one up pretty cheap when VTA moves to 25.5.
I never made the investment to buy a notebook since there is always someone with a notebook that has hotwire installed and is more than willing to allow me to flash my esc. Any really, who doesn't have a old notebook at home? If you really did need to buy one, do you really have to go buy a new one with 2 gigs of ram? I'm sure you can find one on ebay for $100-200 ... do you really need to buy a expensive notebook just so you can drag it around the pits? That's like saying I need to buy a 40k car so I look good when I roll in so no one will make fun of me.