Re: Which one you choose Boxter(no S) / 645
I'm biased, take the e63. Any chance it happens to be the green monster you're after?
Porky Boxster is not that exciting, unless it's the Boxster-S. The e63 will give you more comfort, with reasonable performance to boot. It offers a sensual soundtrack as well, even in stock form. Dress it up with nice wheels and you're set. Even seeing that you've got a stable of fine Bimmers already, I'd still suggest the e63, unless you're comparing between a Boxster-S, Cayman-S, or even a C4S.....yum.
Good luck!