I came across an excellent list written by Sonda (MPFE in UK) of all the required resources you’ll need to get up to speed with SCOM 2007 R2.
There’s plenty of info for the absolute rookie and the novice.
You can find the exhaustive list here:
If you are looking for a similar list of links to resource for Service Manager look no further. Kurt Van Hoecke created a nice list of all the resources you’ll need to get you going.