Asus S56CA + 180GB SSD + extra 4GB RAM (it only has two slots and one of them comes with a 2GB memory).

http://www.asus.com/Notebooks/Superior_Mobility/S56CM/

Would be around $1000 and its a beast. It's powerful enough for everything you will want to do, battery is about 4.5 hours, and it has this NVIDIA Optimus technology that switches between a powerful GT 635 and Intel Ivybridge depending on your graphical needs so battery doesn't drain out that quickly. I play Counter Strike: Global offensive on high res and it works perfectly. 4 different VMs? The SSD handles it. Need to develop 3d stuff on Android? No probs. You'll need Bumblebee (OS project) to handle both GPUs but it's easy as pie to install.

Also its an ultrabook so pretty thin. Not as lightweight as I'd like it to be but still very portable.