I agree 100% that Silver Efex blows PS away for conversion. SE has several functions that CS5 does not have. The two most useful to me are the ability to see what Zone any given section falls into, and the "structure" function which has no equivalent in CS5.
Kit Lens wrote:
Jerry, I've got Silver efex pro and it blows photoshop away. Of course it's a dedicated program and it's not cheap. I'd say if you absolutely love black and white, invest in Silver Efex. If it's a once in a while kind of thing then you can get buy with ps.