I not only feel comfortable with post-work, I love doing pre-work. I open my textures and alter those, I mess with my bump files and now IBL images. Then mess with the morfs and faceroom. The "renders" are just as small step along the road. After that it's composite, I can go through layer after layer of mods. All the time fighting not to arrive at an overworked muddy mess. If the look I want requires printing and onto the light table and re-scanning then that's what I use. I even use other peoples skills and equipment like the local camera shop to do my final printing. From idea to item, you can't use Poser to frame or bang the hook in the wall and that's about as post as you get. So I'm a use the best tool for the job type and have fun at every step. All that said I also like to push myself and develop good skills with each tool. Why use two when one will do.