I have been using PK Sharpener as my main method of sharpening for 2 years and it is superb.
It works as a sharpening workflow – Capture, Creative and Output and each stage has various sharpening or softening settings. Or, like I do most times, you can just use the creative sharpening tools if you prefer.
Everything is done on a separate layer so it doesn't change your original image and the opacity can be altered to increase/decrease the effect.
To be honest, the final websize pics I do always need selective sharpening. By which I mean applying unsharp mask and then painting the non-sharpened version back in with the history brush in specific areas, usually diagonal lines.
And selective stuff always takes time because you have to do it by hand. I prefer it that way, though. Kinda makes me feel like I'm giving the image a final polish before showing it to people.
Also, I'm really starting to appreciate softer lines at the moment. Sharpening works best when it's applied carefully in a few, small areas, IMO.