be it an exchange line, a wild pawn push or a catalan.
...for ultimate d4 aggression try the Blackmar Diemer Gambit, which is quite transposable into via 1...d5 and 1...Nf6 but for the later black response you could also try the Trompovsky 1. d4 Nf6 2. Bg5 as a surprise weapon. Both openings are said to have questionable soundness but should be good up to 2000 elo.
re Trompovsky ... If someone wants to study it, GM's Julian Hodgson and Gata Kamsky have used it extensively.... and Gata's made the WC cycle before. It can get nicely tactical too.
colle good opening. easy to learn. hard to beat. can be played against everything black has to offer. go to chessgames.com to see opening.
b6. If anyone has any ideas I'd love to hear them.
botvinnik as a piece of the repertiore.
hmmmm The blackmar diemer looks dubious to me but you can make your own mind up on that one. I would suggest 1.d4 2.c4 against any of blacks moves. by doing this you limit the amount of theory you have to learn (you said in your first post you didnt want to learn too much theory).
I'd love to play against any White player whose knowledge of Queen pawn openings was limited to 1.d4 2.c4.
I like the Classical KID with either color. There's a pretty good amount of theory, but you don't necessarily need to know it below the Master level. Be warned, though, that Black can get a pretty powerful attack against an unwary White player.
There are lots of transpositions in the various QGD/Slav lines. Unless you want to play something really sharp (like the Botvinnik), you can probably get away with just developing your pieces to decent squares and seeing what opportunities appear. These aren't really lines where Black is likely to roll over you by move 10 or something.
In general, the 1.d4 lines are less tactical than the 1.e4 lines. That doesn't mean they are passive by any means, but the position does tend to evolve a little more slowly than you may be used to.
d4 opening In your post you requested a simple easy to learn d4 system. Here is the opening statement from Jeremy Silman.
In amateur play, I don't think there is a more popular and useful opening (from White's perspective) than the Colle System. It's quick and easy to learn, safe, and contains quite a bit of sting.
Seconded! I've been playing the Torre Attack for only about a year now and have had a few successes with it.
As well as the advantages schnarre mentions, you can create a maginot line of pawns using c3 and e3, which are also handy for access for light bishop and Queen.
i think i'll always stay away from 1.d4 because 1...d5 is usually just way too boring to play against.
I generally find that the mainline of every opening is actually rather good (surprising, isn't it?...). Not all that long ago I started playing 1.d4 (in blitz at least), and I found that standard, straight-forward development was almost always possible and led to a good game.
As for 1. d4 d5, if you want exciting but questionable soundness, the Blackmar-Diemer Gambit is always an option. Otherwise, I've been going with the Queen's Gambit. It's not too hard to play that as a real gambit (develop and grab space instead of recapturing) --though I will take the pawn when it feels right -- and that has never led me to a dull game.