Dell XPS 17 3D Cooling pad

Hey guys, could anyone suggest a good cooling pad for this laptop? Ive been looking around but im not sure which one would fit perfectly. Problem is that whenever i play games left lower corner gets real hot and all the coolers seem to be focusing on middle. Any suggestions?

i saw this one http://www.cellularfactory.com/laptop/DELL/4/57189/687299/ but they are sold out, any otther places which could be providing this kinda table also? thank you.