I've been looking at whether to get a Unibody MacBook 2.4 instead of a Pro 13 2.26. Here are the main pros and cons I have learnt about, I would be interested in comments from you guys plus any additional factors thrown into the mix. Advantages of UMB over Pro13: Faster processor Replaceable battery No worries over the Beachballing firmware issues from the new Pros Disadvantages of UMB against Pro13: Poorer screen - or is the silent screen upgrade from April/May 09 on a par with Pro screens? I'd be particularly interested to know about this point. Battery less efficient No Firewire 4GB Max RAM Also, what is a good price for the UMB, and what is one likely to be able to pick a new one up for? Do both upscale equally well to external displays?