THeres also a very good White paper on the resource governor which can be found here http://msdn.microsoft.com/en-us/library/ee151608(v=sql.100).aspx

If you've read BoL then I would suggest reading this next as it goes into a lot more detail.

Edit : I've just seen that you are being touted by your company as a Sr. DBA, this really is wrong of the company, not least because its misrepresentation, and not good for you especially if you are in a room with someone from the client side who knows more than you do as i've been put in that awkward position before.