Economic slowdown and gospel reality

Paul Grimmond has just posted on the Christian response to current economic slowdown and even though it was a long post, I actually read most of it.

Crossroads should consider changing our preaching program for the rest of this year so that we can respond to some of these very topical concerns. Often churches committed to expository preaching can be slow to respond to current issues in our preaching calendars.

We were going to study 1Samuel on Sunday nights, but what should be study instead? It'd be good to do something Old Testament. Suggestions?