This has come as a big surprise to me, Killer Guides' is having a very special offer for the end of the year!
From 1 Dec to - 7 Dec 2009 , if you buy 1 guide, you get another 1 guide for FREE right away!
From 1 Dec - 31 Dec 2009, if you buy or upgrade to a package, the next purchase will be half the price! Not to mention you will get an opportunity to win a a Razer Carcharias Professional PC Gaming Headset, Xbox 360 Elite, and so much more!
Check out their main site here: Killer Guides