Read this great article from HunchBlog about how your web address for your business describes your professionalism.

I have this issue also with which email address do you use when you sign up for services, which do you use for friends and family. I use mobile me for my personal life to sync everything together and the mobile to desktop transition is very easy.

Gmail is a great business tool that allows  your business domain forward through Gmail. Since most of my interaction is through my iPhone Gmail and Mobile Me are great. I have started using Sparrow as a desktop Gmail client.

Sparrow – The new mail for Mac from domleca on Vimeo.