What method are you using to isolate your objects on the images, to get white (or any other colour) background?
I am using Filters>Extract filter. And sometimes PS plugin MASK PRO 4.1.
You can see examples of my iamges in my porfolio, it looks pretty nice.
At the begining I was using only dodge tool, and those are not quite well. I stoped using that for wanishing white backgrounds (when I am taking photos in my lightbox).
What do you use, and what do you recommend?