Affiliate Marketing Secrets

I have been selling my designs (household products) on my website for the last 3 years. I have had these products made in China in the past but my existing supplier has now ceased trading. I do not wish to continue starting from scratch with another chinese firm and considered closing down business. But I still have a valuable site which has had extensive SEO investment and ranks in the top 5 pages on google for several keywords and we still get decent traffic daily. Rather than let the site go to waste I was considering selling other companies products through an affiliate program which looks like a genuine e-commerce site rather than a ‘trashy pay per click’ link-redirect site which sends people to other companies sites. Does anyone know of a good affiliate scheme that allows businesses to select and choose products and sell whilst using the suppliers e-commerce software or source code to embed into the our website.
Any advice will be much appreciated.
Thanks in Advance!