That's a really good one! I really want to do that as well, I think in January I'm going to replace my desktop and I'm going to get a second monitor as well. I wanted it before because it looked cool :-p but everyone I know that has dual monitors says it increased their productivity 10 fold.
definitely Mozy, LastPass.com (like roboform probably), Evernote, my iphone (aka my second brain), oh and my newest infatuation is my wireless printer.
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