I mostly spend about 30 minutes on post on every image. Now, I always do colour correction of some sort, and sometimes stuff like clothes for Poser figures and motion blur. I'll always clone out straight lines, too, especially shadows on bumpmaps, which Bryce doesn't map. But then again I've never spent more than 10 hrs on any image (as far as I recall) so 30 mins out of an average of 3-4hrs is quite a bit, I suppose. A bit off-topic, but I totally envy people who have the patience to work weeks or months on a single image. I guess that's a skill I've yet to learn. But it seems like the ones I take longest over are my worst ones! My quickest was <1hr !