ChessPublishing will have everything you need.
The e-book will give you plenty of ideas on what lines you can play, but here's a basic repertoire to get you going:
Nimzo-Indian:
4.Qc2 0-0 5.a3 Bc3 6.Qc3 Ne4 7.Qc2 f5
4.Qc2 0-0 5.e4 d5 6.e5 Ne4
4.e3 b6 5.Bd3 Bb7 6.Nf3 0-0 7.0-0 d5
4.e3 b6 5.Nge2 Bb7
4.Nf3 0-0 5.Bg5 h6 6.Bh4 c5
4.f3 0-0 5.a3 Bc3 6.bc3 Nh5
4.a3 Bc3 5.bc3 c5 6.e3 b6
4.Bg5 h6 5.Bh4 c5 6.d5 b5
4.g3 d5 5.Bg2 0-0 6.Nf3 dc4 7.0-0 Nc6
4.Qb3 c5 5.dc5 Nc6
Bogo-Indian:
4.Bd2 Qe7 5.g3 Nc6 6.Bg2 0-0 7.0-0 Bd2 8.Nbd2 d6 9.e4 a5
4.Bd2 Qe7 5.g3 Nc6 6.Nc3 Bc3 7.Bc3 Ne4
4.Bd2 Qe7 5.Nc3 Bc3 6.Bc3 Ne4
4.Nbd2 d5 5.a3 Be7
4.Nc3 - see 4.Nf3 Nimzo-Indian.
Then there's the Catalan-Bogo and White's various d-pawn Specials, but I assume you have a subscription to the d-pawn Specials site as well.