The Biblical Archaeology Society is having a summer sale on DVDs that looks pretty good.  For instance, the BAS Lecture Series Deluxe Set I is $80 and includes 9 DVDs with 15 lectures.  Some of the lecturers are leaders in the field, including William G. Dever, Michael D. Coogan, Bart Ehrman, James Tabor, Aren Maier, and Shelley Wachsman.  A bonus lecture by Dever includes his personal memories of famous archaeologists.  I haven’t seen these, but good lecture series usually require a plane ticket and an entrance fee of $25 and up.  There’s a second series for $62 which includes 12 lectures.  Some of the topics seem a bit esoteric, and some of the lectures I don’t think you’d want to show to a church group, but for many who can’t go to grad school, this is one option.