Thanks a lot for the feedback. I've tried to silo the news / information content (http://goo.gl/uSDfm) away from the product / transactional related content (http://goo.gl/X3M8d) by assigning them to different categories. Do you think I should go further then that? I've considered subdomains but have held off because of the subsequent need to 301 so many urls.Maybe there's another option?

Product wise I have a bigger database then any other website. Each product profile features a mix of product info, reviews, price comparisons, and checklists. So they are a combination of both types of content in a way.