I'm not sure how long this coupon may work, but "newattf" takes 10% off any order at 2dogRC. They are the major US Distributor of the Dualsky Hornet Quadcopter, a mid-sized quad which has a very good payload and lots of other features. It comes "ready to assemble" - not really a kit, but needs some assembly as well as a battery and transmitter/receiver. All told this is going to cost you maybe $400-$450, still a very good price for what is a mid-sized quad with quality components and decent lift capacity. http://www.2dogrc.com/dualsky-460-hornet-quadcopter-arf.html Note that most of the reviews and ratings you will find online for this quad are from the distributors and dealers - not to say they are not accurate, but they are likely not critical. However, most of the components used are well known and the maker has a good reputation.
