Slick Audio PCs

I need a mobile laptop.  Been checking out slick audio, pc audio labs.  Any users out there have any advice?
 
I dont have any thunderbolt devices yet but not out of the question
 
I built my last 2 studio pcs,  im not afraid to build, is it out of the question to just build a laptop?
 
Whats the consensus?
 
 

See the thread I posted recently regarding my new Studio Cat laptop.  I went pretty all out, but you don't need to put everything I had put in mine.  I will warn you that they are made for performance, so it's not one of those wimpy 5/8" laptops that weigh as much as a sheet of paper. 
 
This thing is over-engineered if anything and has desktop performance in a portable package.  Thicker and heavier than most laptops, but still light enough to put in a big laptop case or backpack and take with you for remote sessions. 
 
Jim from StudioCat frequents this and a few other forums, and is pretty well-known around these parts for the quality of high-performance DAWs he puts out.  My last two towers were StudioCat and I finally decided to get a laptop with my most recent, as I'm working on a project with a guy that lives about 150 miles away and it will be easier for me to bring a laptop and a small rack with my interface and a couple more items and bring the "studio" up to my buddies place.