@blackberry... can we access from web or IMAP client?

is it possible to access my @vzw.blackberry.net account via Mail.app or any other IMAP client?

No. The carrier assigned email address is only accessible from your BB.

then the follow up question..

the Auto BCC & Foward options... which one is prevelent to foward any message received directly to my @vzw. email account to be sent to my @gmail.com?

I say try them both. That way you learn how they work.

Forward is for incoming mail, and AutoBCC is for mail you are sending