What laptop do you use/recommend for running Solidworks?

We're using the Dell M6700 (business workstation/laptop), however these systems are failing hardware wise (they keep needing to get video card and screen replacements).

Anyway, we're tired of this and I'm wondering what other laptops out there are as solid, in terms of performance, for running Solidworks (i7 + the Solidworks "approved" video cards).

Thanks.

SolidworksGeneral