The videos are what helped me. The basics are very simple and watching other do walkthroughs can really help. It's a great program that I use all the time. I'm actually contemplating buying the full version to be able to use for business purposes.Youtube, man, youtube.
One of the main benefits of Sketchup is the community of similar users that teach and help each other out. There are literally thousands of quality how-to videos. There's also some great free extensions that automate some of the process for you, but I'd focus on getting the basic navigation and modeling down first.