Printrbot Simple Metal users. I ordered this today. Now I can print 8x8 inches and can print the front and rear chassis plates in two pieces instead of three. Can’t wait until this arrives. $164.95 US including shipping. They also have the Z upgrade for $43.31 not including shipping but they are out of stock on that item. Allows you to print 10 inches tall.
http://www.matrix-precision.com/products/metal-simple-880v2-xy-upgrade-black-edition
Very nice upgrade. Definitely worth the money!