The most significant stumbling block in Biblical Archaeology is the incorrect belief that the archaeology from Jericho has shown the Biblical story to be false. Dr. Bryant Wood is featured in this new video, due for release in the near future. Dr. Wood's meticulous work on the archaeology of Jericho has shown that the conventional wisdom about the historicity of the Conquest narratives requires serious re-examination.
http://www.sourceflix.com/vid_makingjerichov3.html
See Dr. Wood's work on Jericho here: http://abrdev4.client1enktesis.com/faq.aspx#Faq4