I'm importing all my mail into Mail now, about 5 years worth, and I'm looking to take the plunge into using Mail/iCal/Address Book instead of Entourage 2004, mainly because I am sick of how poorly the calendaring is working in Entourage and the fact that my wife and I have .mac accounts which I get little use of because we're not using the iApps.
That said: I'm concerned that 5+ years of muscle memory will go to waste, and that I'll end up screwed—has anyone here made this transition before? Any tips on what to do, add-ons that help, or dire warnings as to why I shouldn't do this?
(I searched the forums, and there wasn't much substantive discussion I could find quickly--I hope this hasn't been done to death, but I don't recall seeing much on it.)