Is the Lenovo Thinkpad Edge E545 a good engineering workstation?

I'm an engineering student searching for a laptop under $700 that can smoothly run AutoCAD 2014, Microstation and Visual Studios.
For the processor I want the AMD A10-5750 Accelerated Processor w/Radeon HD 8650 Graphics. I want the 4GB memory since I plan to use a 4GB stick to achieve 8GB (unless running 12GB is better). I want the 500 GB Hard Disk Drive since 320 GB seems too small. I'd also use this laptop to run Minecraft, so I'd like to know if it would run smoothly on low to medium graphics.
I'd appreciate help on this one.

Go for the HP ProBook 450 G1 15.6" Laptop see here >http://amzn.to/1t1iU7v
It has the Intel Core i5-4200M Processor 2.5GHz processor which is better than the AMD A10-5750 as well as it has AMD Radeon HD 8750M which is newer and better than the Radeon HD 8650 Graphics. This laptop also has a 750GB, much bigger than the 500 GB you requested- as well as it has 8 GB RAM so you don't have to add any more memory. This laptop should run Minecraft smoothly indeed, and surely; utoCAD 2014, Microstation and Visual Studios.

ThinkPad W520 427637U ( 15.6 FHD, LED Backlight, WWAN Capable, Mobile Intel 6 Series chipset, Intel QM67, NVIDIA N12P-Q1 Quadro 1000M, 720p HD Camera, Integrated Bluetooth Wireless, Trackpoint and Touchpad with Fingerprint Reader, Intel Core i7-2720M processor, 500 GB / 7200 rpm HDD, DVD CD Multi Burner, Express Card Slot & 4 in 1 Card Reader, 8 GB (4 GB x 2) memory, Integrated Mobile Broadband - Upgradable, Intel Centrino Advanced-N 6205, Modem Daughter Card and RJ11 port, Genuine Windows 7 Professional 64, 9-cell Li-Ion battery - 55++)" 3-Year Depot/Courier or mail-in/Carry-in Topseller