One of my merchants is promoting you to it's affilaite base. How cool is that
-Datafeedr.com - This Wordpress datafeed tool is paid, but they do offer a free 30-day trial so you can check it out. I would recommend trying the other two free tools first, but if they can't do what you need, Datafeedr might just be the answer.
I will give them so more feedback around Datafeedr for you Guys..