It's good that someone's gonna use this for the full potential, I'll support you with any project(s) you start. If you need a walkthrough of a game that has been created in UDK, this one is called Whizzle. http://www.udk.com/elements/downloads/Whizzle_Creation_Document_1_2.pdf Best of luck!
Hmmphh, it's kinda hard to design with the laptop mouse. The interface is really hard to use but I'm guessing because it's one of the most popular SDK's it's one of the best interfaces?
Yeah, to get used to the interface, I used the unofficial tutorials (linked in the OP). The getting started will take a couple of hours, but it's all downhill since then.