Suggestions for Guitar Learning Materials?

Does anyone have suggestions for a good video or CD package for learning Metal or Blues guitar tricks and styles?

I'm interested in Mississipi Delta/Led Zeppelin style blues (slide guitar, fingerpicking, etc), and all types of Metal (including tapping, harmonics, etc).

I've been playing for a year and a half now, and consider myself an intermediate player. Someone was telling me the George Lynch video really rocks.

Thanks,