TN wrote on 01/27/13 at 13:54:56:
The 7.Nf3 c5 8.Bb5 Exchange. It's seriously tough for Black to play for a win against it.
I like this option the most, especially because in a good amount of your games Black will play 7...0-0?! (instead of 7...c5). After 8.Be2! you have chances for a real edge. See
The Road to Chess Improvement and some posts on these forums.
I used to play 4.Nf3 Bg7 5.cd Nxd5 6.e4 Nxc3 7.bc, because in that move order I thought Black might be a little more likely to carelessly play 7...0-0?! (who knows if that's really true). If Black played 7...c5! instead, I'd decide on whether I wanted to enter the 8.Rb1 lines or play 8.Bb5+ (I almost always played 8.Rb1).
This way, you can begin studying the complicated 8.Rb1 but have a "bail out" option to a perfectly playable position with 8.Bb5+. There's nothing wrong with 8.Bb5, it's not a bad move, but it can lead to simplified positions where neither side has much to play for. On the other hand if Black plays for a win with 8...Nd7, he runs the risk of not putting enough pressure on White's center and ending up in a bad game. So all together I think it's a perfectly reasonable way to play based on sound, straightforward development instead of odd moves like 5.h4. 5.h4 might be playable, but in my opinion, what the top GMs can make work is different than what us patzers can make work...