I've been practicing 1.d4 for a little while now, and I like it a lot. Play the Queen's Gambit supplied me with an excellent repertoire against 1...d5, but facing 1...Nf6 causes me more of a dilemma.
I'm really unsure of what to play against the KID and Grunfeld. I want something that's not a theoretical monster, but still completely (And I mean completely) playable. I have no problem with gambits, as long as they're sound. Right now I've been playing the mainline 7.Bc4 against the Grunfeld and the Bayonet against the KID. They both seem like fine choices, but the lines can get bookish - and I don't have a book on them.
In blitz earlier though, I did play this accidental gambit against the Grunfeld which may have some hope:
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Rb1!? cxd4 9.cxd4 Qxd4 10.Qxd4 Bxd4 11.Nf3 Bg7 12.O-O O-O (= -.10 Fritz 9)
In the actual game I played the rather crazy 9.Qb3 after which white doesn't seem too bad actually. I.e.: 9...O-O 10.cxd4 Qxd4 11.Bd5 Be6 12.Nf3 Bxd5 13.exd5 Qe4+ 14.Be3 (=+ -.38 Fritz 9)
These lines seem to look playable, and would definitely have my opponent out of book, or am I just wasting my time on an inferior line when I should just be playing the typical 8.Ne2?
As for the KID, I think the Bayonet Attack is what I want - but I need some sort of book or DB to get some information on the lines for both the KID and Grunfeld, can anybody recommend something? Or does anybody have recommendations for other lines I could use against the KID or Grunfeld - particularly something active?