Hi,
Here are some random observations. I use Gmail for storage only and I use my own domain name.
It's worth migrating all your legacy email to Gmail.
With Gmail "Labels" = "Folders".
Set Gmail up for IMAP. Read and delete email on your BB and it will sync to your email client.
Use your ISP for SMTP (mail out) so you can use your own domain (e.g.
info@crackberry.com). Then recipients see your email as being from "info@crackberry.com" and not "crackberry@gmail.com".
Gmail has some folders that you don't want to subscribe to in your email client (e.g. the "All Mail" and "Spam" folder). Apple Mail only subscribes to *all* IMAP folders, so I suppose live with it. Or try Thunderbird. I use Entourage.
If your carrier has BIS 2.8 BlackBerry there is an "Enhanced Gmail Plug-in" that is useful. Mostly because you can search all your emails on the Gmail server.
When you set up a Gmail account for your BB the Enhanced Gmail Plug-in will give you an option to sync Contacts. The Mac Address Book can also sync with Gmail. I like it, others don't.
The Enhanced Gmail Plug-in is built in to OS 5. Rumour is next year BIS 3.x will offer two-way sync with BB and your computer for mail, contacts and calendar.
Edit: I don't like the Google Sync app for BB. It caused to many headaches on my Bold, but worked fine on my Pearl.
-- Robert.