Learning Advanced Windows 7 (recommend a resource)

Hey there! I am looking for recommendations to help me learn more about Windows 7. I'm searching for books and hitting a wall; there are too many results to sift through and much of it is either for complete beginners or way too specific in one technical area.

**What's my background?** Using windows since 3.1, some programming background, some networking background, with a good grasp of most basic tasks. I also work in IT as a pharmacist.

**What do I want?** I want to know more about tips and tricks, troubleshooting, administration, networking, security, more depth regarding tools included with windows. I want to take my knowledge from "pretty good" to more advanced.

Should I be looking more towards windows administration resources? I don't want to become certified or anything; I just want to get a lot better in general at using and running windows. The resource does not need to be a book necessarily.