Alienware Laptops

I'm thinking of a new laptop and am sick of Apple's lack of juice. Then someone suggests the Alienware with SATA Raid 0 built into the laptop. The specs say only 40GB x 2 are available but I'm sure 100GB are useable. I've sent an inquiry but was wondering if anyone has one of these guys and their thoughts.

I can always add OS X to it when apple switches... like Apple will allow that!

Can't you just wait til next year and get yourself a juicy Intel PB?

No advice on the Alienware gizmos I'm afraid...