Just getting into digital and need to buy a computer. I've decided to go with a notebook because I would like to take it when I travel. I will be using either lightroom or NX (can't decide, but that is another subject). I've been watching the Apple store for refurbished deals and I can't decide between a 15" MacBook Pro or a MacBook. The MacBook Pro I've been looking at is $1399 for 2.0GHz, with 1GB RAM and 100 GB drive. The MacBook has 2.0GHz, with 500MB RAM (2x256), and 60GB drive. Do you think it is worth the extra $400 for the MacBook Pro?