There are a herd of good candidates for the NL Cy Young at this point. Any one of these guys could take it home with a dominant last two months. Other guys like Gallardo, Latos, Cueto and even Brian Wilson and Heath Bell have had very strong seasons. I think these are the frontrunners though.
Ubaldo Jiminez: 22 starts, 17-2, 2.61 ERA, 135/60 K/BB, 1.11 WHIP, 148 IP, 3 CG
Adam Wainwright: 24 starts, 16-6, 2.07, 154/42, 1.00, 169.1, 5 CG
Roy Halladay: 24 starts, 14-8, 2.34, 168/22, 1.03, 185.0, 8 CG
Tim Hudson: 23 starts, 13-5, 2.24, 83/53, 1.10, 156.2, 1 CG
Josh Johnson: 23 starts, 10-4, 1.97, 156/36, 1.01, 155.0, 1 CG
Tim Lincecum: 23 starts, 11-5, 3.15, 159/58, 1.28, 151.2, 1 CG
Ubaldo Jiminez: 22 starts, 17-2, 2.61 ERA, 135/60 K/BB, 1.11 WHIP, 148 IP, 3 CG
Adam Wainwright: 24 starts, 16-6, 2.07, 154/42, 1.00, 169.1, 5 CG
Roy Halladay: 24 starts, 14-8, 2.34, 168/22, 1.03, 185.0, 8 CG
Tim Hudson: 23 starts, 13-5, 2.24, 83/53, 1.10, 156.2, 1 CG
Josh Johnson: 23 starts, 10-4, 1.97, 156/36, 1.01, 155.0, 1 CG
Tim Lincecum: 23 starts, 11-5, 3.15, 159/58, 1.28, 151.2, 1 CG