Two major questions surrounding one subject... buying a new computer.

I draw about 50 hours a week, primarily on AutoCAD 2012.  I am learning Revit as well, as one of my primary clients is requesting future work.

I use Google Earth extensively.  I also use Sketchup on a pretty regular basis.

I often have all these programs open at once.  My current system is a Dell XPS from 2011 with the following specs:
Model XPS L702X
Processor: IntelCore i7-2620M CPU @ 2.7 GHz dual
RAM: 8.00 GB
1 TB hard drive (not solid state)
64-bit
Windows 7 Pro
Video:
 - Intel HD Graphics 3000
 - Total Avail. memory: 1696 MB
 - Dedicated Video memory: 64 MB
 - System Video memory: 0 MB
 - Shared system memory: 1632 MB

Needless to say, this system is not handling my work load.  However, I don't know which items to focus on... a better processor?  A better video card?

So I am looking for advice on what sort of laptop to buy (not a desktop).  I plan on having a large solid-state drive as well.

The second question is about installing AutoCAD to a second laptop.  I purchased my AutoCAD license 2 years ago, but did not pay to continue getting the updates.  So I am wondering if anyone anticipates any trouble with installing AutoCAD on the new computer.  I have an authorized copy (my own serial number and fancy USB flash drive), so it is not pirated or anything.  My Autodesk sales guy told me I don't have to keep paying the annual fees (they were about $1000/year) but I would not get the software updates anymore.  He did not mention anything about problems loading the software down the road.

Thank you all for your advice.  I appreciate it.

EnvisionMan

I'd get a laptop with 12GB of RAM.  Then I would look for a system with a SSD drive for loading all my programs and a platter drive for storing all my data files (drawings included).  And get a system with a dedicated graphics card (2GB vidRAM minimum).  Onboard graphics chips are not the way to go when it comes to serious CAD work.