i tried once on computerforum and did not get very good results. I found a pretty good one but i can't remember it's name. it was a mac and was supposed to be able to hook up to my printer to make my printer wireless. This however is a pretty good one, i think
http://www.newegg.com/Product/Product.aspx?Item=N82E16833122314
http://www.newegg.com/Product/Product.aspx?Item=N82E16833122314