You might want to check out the Mosul Case Study by Rob Thornton, John Fishel and myself (original version here, version with missing chapter here). Rob has some really good ideas that can help shape your design, and his work has influenced JCISFA while he was there. You may also want to check out what threads Rob has started in this forum since he tends to use the SWC as an idea bouncing place.

Cheers,

Marc