That Fundamentals book by Wilczek that I mentioned is a good start. I'm also reading through the pop-sci classics now (A Brief History Of Time, Feynman's stuff) and they're not disappointing.

I really like the Very Short Introduction series by Oxford University Press. I've read 30 of them so far (just counted). At this point they basically have a book on every aspect of physics that has interested me at one time or another: black holes, gravity, quantum theory, waves, time, thermodynamics, chaos, etc. Really love being able to literally put the book in my back pocket and read a few pages whenever I have a spare moment. Each book can be very hit-or-miss, though. Some of them are badly written and fail at their basic value proposition (providing a concise and reasonably complete overview of a field).