I wouldn't buy anything other than Asus when it comes to laptops. The Zenbook, which HTexen mentions is super light, packs a good punch with the i7, 256gb SSD, 13.3" screen, graphics is Intel which isn't all that great but may not be important for your needs. Only has 4gb of ram though, don't think you can expand it more, but not 100% sure on that.
Asus also makes some really solid "gaming" laptops that may be more in line with what you need, 8gb of ram, Nvidia 3gb video, 17" screens, dual SSD's, etc etc, the G74SX I think is the model.
I bought a killer ASUS.
It could be a gaming computer if I wanted it to. It's got a shitload of power.
It's basically my backup computer now.
I have an HP Pavilion that I've had for years. It took about 6 years of continual use for the video card to finally take a dump and when it did, I just replaced the video chip and coated the wires that typically get too hot. I don't think it will ever break again.
People say they are crap, but this is a standup puter. Got CS5 and the whole Adobe setup on it with room to spare. Maxed the ram. Got 4 sticks, but as a 32bit it maxes at around 75%. It's faster than lightning with T4.