I'm new to the affiliate market in away, I've done it before but nothing serious. I had a few questions for those with experience.

1. How would I go about becoming an affiliate with multiple companies and using a price comparison script; which I could then have someone click on the desired item but it seem like they are still at my site. I want to say legit with the affiliates, but I want their store to be in mine when needed. I know frames are no no's in the affiliate industry, but I think amazon has an option where you can select items and they will appear as if they are in your store.