Selling my XPS Laptop
The L521x was built to compete with MBP 15. It even looks like one.
Aluminum/Carbon/Silicone body, Backlit keyboard, Scratch resistant gorilla glass display, excellent quality speakers, large and very sensitive trackpad.
The processor 3632QM Core i7 is the best processor they put in the L521x
This laptop also has 2gb DDR5 dedicated Nvidia graphics card. 750GB HDD, 6GB high performance RAM (expandable up to 16GB). Slot loading DVDRW/CDRW drive. Ethernet, 3x USB3.0 ports, HDMI and MiniDP ports, SD card slot.
Comes with Windows 7 Pro OS.
Excellent for business, gaming and other uses. Very fast and reliable.

Only a couple of tiny issues: A couple of small dings on exterior body, barely visible. Fan can get pretty loud when playing video games on full performance specs. This can be fixed by replacing the fan to the new one.
Original and well known wireless network problem from the factory has been fixed and new wireless network card has been succesfully installed.
Everything else is in top notch shape. Battery still lasts about 3 hours in high performance and up to 7 hours in low performance but full backlight.
The price is firm $720. Will not negotiate, this is a killer deal.

Here are more details about this series of laptops http://www.notebookcheck.net/Review-Dell-XPS-15-L521X-Notebook.80033.0.html