So I'm looking to get my significant other a new MacBook to use in her classroom. I'm glad to see they've given the Macbooks an upgrade today, but I'm debating if it's really worth the extra money to get the new processor. She doesn't do anything that the older "low end" models wouldn't handle without trouble, so would you say the updates today are worth the extra moolah? The extra money I'm referring to is that I can get a refurb from Apple for $799 (2.0 ghz, 1 GB RAM, 80gb HD) or a new one for $1,000. Any thoughts?