It sounds like you could easily just get the base model, and for half the price, it would do exactly what you need it to. I don't know what you could possibly need those specs for, unless you are doing heavy photoshop and final cut editing, while working. There is no game that you could play that would actually benefit seriously from getting all of that. Now, I'm not saying don't get it, but seriously consider exactly how much computer that is. I play some light/medium games on my 13" C2D MacBook (not even pro), and it still performs pretty well even with only the 9400m graphics.
It would be very helpful to know exactly what you want to do with it before you go spending 3 grand plus on a laptop as well.