Originally posted by filtay
Can anyone recommend any good ones? I'm severely lacking in opening theory - time to do something about it.
whatever material you end up with, put it all into http://www.chesspositiontrainer.com/ and drill the hell out of it. otherwise you'll just forget it all in a few weeks.
when it comes to the openings, understanding the ideas behind the positions is the king. BUT you can't get away without a certain amount of memorizing. either by playing thousands of games or drilling the openings, one way or other you'll need to do the legwork until you'll come to know your openings. best is doing both.