dual monitor laptops

My manager insists that we have laptops, I need dual monitors. I dread lugging around a second, standalone monitor. Bulky and non-essential, IMO.

I like this…

http://www.gscreencorp.com/home.htm

…but, who else (if anyone) makes this kind of stuff and has workstation-class laptops (x64 OS, Quadro graphics, 2x quad core procs, 4+ GB RAM, etc.). I can’t find a single Dell laptop in this configuration. Does anyone else make these? Googling is tough because you get a bunch of stuff aboot external, non-attached monitors.

TIA if anyone has a line on this stuff, much appreciated.