I've had my own small business for a while now. When I first started out I pointed my personal gmail to my business mail box and simply imported it to a label.
Currently all my company email (1 man band) is sitting under a simple label. I have several other labels which are associated with my company. My Contacts I can export and import and delete the personal ones manually.
I now want to separate my personal email and work email so have purchased google apps and am in the process of migrating.
I have come to do gmail and want to know if I can do a selective import of certain labels. into my google apps account as I have years and years worth of email in my gmail account I don't want to simply disappear. The end result should be that my business email reside in google apps and the personal stuff remain untouched in gmail. I can simply delete all the business stuff in the gmail account once I am happy it all resides in google apps.
I have no calendar entries to migrate so that's easy.