While these are what you want, the apps are ones I'd put you onto the new Haswell gaming laptops. Example at just under 1K today is this Lenovo at Amazon.
Seems you can save a lot if you can back away on the lightweight a little.
I'm looking for a new laptop for next year and I am looking very seriously at the Dell XPS 15, the MacBook Pro (Retina) and the yet-to-be-released Dell Precision M3800. I am currently studying engineering but also do some film making as a bit of hobby. Currently for class I use programs such as MATLAB, Solidworks 2012, Autodesk Inventor Pro etc. I also then use Adobe Premier Pro, After Effects, Photoshop etc. I also want something lightweight that I can carry around with me. I also consider a good screen to be essential. Which of these two would you choose and if you have any other ideas what are they? I don't want to spend more than $2500. Thanks - Matt.