The CEO of Dive Rite, Lamar Hires, has blogged on the topic of O2ptima checklists:
Dive Rite - Dive Rite’s online journal exploring the latest in technical diving » Importance of Following a Rebreather Checklist
Dive Rite is publishing two O2ptima specific checklists I provide my students, I've released them to public domain and they are now posted in the Dive Rite library:
http://www.diverite.com/downloads/diverite_100.pdf
-- Mark