I am considering switching my mail application from Entourage (which I have used for years and have generally been happy with) to Apple's Mail (10.4). My biggest concern of all is that I cannot figure out how to keep my business and personal accounts completely separate in Mail, as I can do in Entourage by creating separate "identities." This is very important as it helps to keep my personal and business life separate, thereby preserving some sanity. Is there any way to keep "identities" completely separate in Mail, as one can do in Entourage? Any advice would be greatly appreciated. Although it seems like a pretty straightforward app, I have never used Mail, so please don't assume too much.