Pentium M 730 or Intel Core Duo T2300?

I have narrow my laptops down to a Alienware area 51 with the M chip, or a Dell E1705 with the Duo core. They seem to have relatively the same speed (so says the websites). But my goal is not to have to buy another laptop for quite sometime (3 years at least). So for the cpu gurus around I ask for your opinion or expertise. Which chip should I go for? Other than than the chips systems are the same. Will be used for web, multimedia and 3d developement.

Oh yeah if you could give me a little spill on why you feel which is better I’d appreciate it. Also any links to comparisons or reviews would be great.

Thanks