VH1 had a pretty good special on them...and there was a song off the Black album where they pretty much so say, "we stole this riff, but turned it around and we'll never tell you who's it is".
Also, I found it surprising that while they had a feud going with Motley Crue they thought the Dr. Feelgood album's "sound" was so good that they changed their production to get the Black album the same feel.
When I was a teenager, I preferred Megadeth to Metallica...as I got older, I came to like them just as much as the other up to And Justice...