I figured this deserved its own thread since it's a pretty outstanding deal. The price of the wireless controller tends to fluctuate at Buy.com, but right now it's at that sweet spot - an even fifty bucks, so there's no need for filler. And best of all, right now they're offering free shipping on this (usually video game items require a $75 purchase for free shipping). Get it while you can! I just ordered mine!
Link: http://www.buy.com/prod/Xbox_360_Wireless_Controller_B4F_00001/q/loc/62440/201975277.html
Link: http://www.buy.com/prod/Xbox_360_Wireless_Controller_B4F_00001/q/loc/62440/201975277.html