I'm researching a possible upgrade to my several year old Macbook Pro. Is there any site that would list the current Macbook Pro line up and what MODEL intel CPU is in it... I don't mean a name like Nehalem, but a model number like W3650, etc. Apple gives us the speed, but it's not always easy to cross reference this to the exact model cpu... I've gone through wicki, but it's not straightforward. Thanks.