Not sure if this was posted on release last September but I just stumbled across this BSG mod for Freespace 2 that looks pretty good. The devs even captured the distinctive drum themes from the show in the original soundtrack for the mod!
http://www.hard-light.net/forums/index.php?topic=81859.0 (http://www.hard-light.net/forums/index.php?topic=81859.0)
I knew there was a good reason why I picked up FreeSpace 2 from GoG's holiday sale last year. Thanks for the heads up...