A most excellent opening. Quirine and GuravV have disected it with realative ease, but I have excellent results gainst almost everyone else. You can play
1. c4
2. g3
3. Bg2
4. Nc3
Almost regardless of what black plays. It doesn't have to be done that way, but it is one option. Probably the most annoying reply black can offer is the slav since it cannot be avoided and I have never really played 1.d4.