+1 on Ed Friedland the guy really knows his stuff.
Check out a guy named Anthony Vitti,
DaaDoo Music. He is a Berklee instructer and a Kick A$$ bassist as well.
His books and videos deal more with the various funk idioms (fingerstyle, slap ,hip hop etc). Great teacher and fun to watch and listen to.
Lately I have been into the new Victor Wooten "Groove Workshop" double disc set.
It's very different than the more conventional lesson discs out there.
It's basically vic and Anthony Wellington in studio with a class of 6 or 7 players of varying skill levels (one guy has an SR5). There are also some nice Victor solo spots as well.
They proceed to break down bass playing and music in general into both technical and emotional areas. It's very cool as some things are so obvious and simple that I've never thought of them. Other parts are very technical as Anthony demos an excercise displacing 16th notes over a 4 bar phrase. Incredibly fascinating and useful.
Vic is like the guru of bass love and does seem like a genuinely sweet guy but some of the players in the class still s--t their pants everytime he looks at them. I guess I would too with Vic, Anthony and the cameras pointed at me

It is a great watch though.