What hardware do Full-time Linux users use?

I have been trying forever to search and find the best hardware for linux as my primary OS, and running virtual machines of Mac OS and Win7x64. I have come to no solid conclusion based on my findings. What do all the Linux gurus use for ultra portability and power. My current configuration is: MBPro 2011, SSD, 16gb RAM, core i7. Work assigned, but I customized it. Linux and Win7 virtual machines I want to swap my VM of linux for the host device and swap in a vm of OSX. Thanks!