I've stopped using Photoshop for any post processing pretty much.
I realize lightroom lacks a lot what photoshop does, but I've found I have a high level of creativity with lightroom, and can do quite a bit. Photoshop was always pretty complex to me, and took a lot of time to use, even to just process raws.
I've found most of my photos don't need anything that photoshop does (I don't make plastic skin, don't clone a lot of stuff, etc etc.) The only thing I wish lightroom had was a good sharpening feature (I hear the SDK will be released though and this should hapen?)