$93 so far.. I wrote more about it on my blog here. Also includes live examples of the sites I'm running, and step by step instructions Feel free to leave some comments, and yes, this is a link bait attempt, so feel free to blog your hearts out! It really is an easy and effective way to make some cash with CJ.
while your suggestion is pretty good; using ebay rss feeds to build posts through feedwordpress, I think it's a better idea to use phpBayLite ( available here:http://affiliates.wiredstudios.com/image.php?bid=3&mid=1064 ) to create a page that displays your niche. The free version does everything you suggest, and the pro version is even better with some new features like country support and minimum bid support. It's an excellent plugin. You can take your site ( which I've built several of, btw ) to the next level with the phpBay software.
I don't particularly care for that software because it creates 20, 30, 50, or more outbound links per page to ebay.com. This can't look good to Google. My sites receive over 150 uniques a day, all from search engines. I've spoke with several people running bans and phpBay that haven't seen nearly that much organic traffic is less than a month of going live. If I'm wrong, please prove it. How many unique visits from Google have you received on your phpBay store in it's first month?
I setup a new site recently (last week) using phpbaypro and I'm definitely seeing at least 100 uniques a day from search engine traffic...