Apple provides a suite of Internet based services called .Mac, which I think is worth subscribing to, however it is not every one's cup of tea. There are plenty of threads on the Pro's and Con's of .Mac, I suggest you search them out.
You can take a free trial which you can get here.
http://www.mac.com/WebObjects/Welcome?aff=consumer&cty=US&lang=en
The reason that I mention this is .Mac do a range of training videos to get you started in OS X and the iLife Applications which will give you a really good start. The training videos can be found here (not all of them require .Mac membership)
http://www.mac.com/1/learningcenter/
You can take a free trial which you can get here.
http://www.mac.com/WebObjects/Welcome?aff=consumer&cty=US&lang=en
The reason that I mention this is .Mac do a range of training videos to get you started in OS X and the iLife Applications which will give you a really good start. The training videos can be found here (not all of them require .Mac membership)
http://www.mac.com/1/learningcenter/