Dr. Ali Shehata's various articles can be found here:
http://muslimmatters.org/author/ali-shehata/

Audio CDs by Dr. Ali Shehata can be found here:
http://www.ilmquest.org/c-170-ali-shehata.aspx

Some of his lectures can be downloaded here:
http://www.sunnahfollowers.net/shehata/main.html

To buy his books:
The Trade Which Shall Never Fail: A Collection of 55 Hadith on Actions with Immense Rewards
Demystifying Islam: Your Guide to the Most Misunderstood Religion of the 21st Century