I'm about to adventure the ISACA world and attempt to get the CISM. I already have a few certifications like mile2's Certified Information Systems Security Officer. And although the CISSO has some IS management, it only has a few modules. On that note, does anyone have any strong prep guides that you found extremely helpful? The official CISM course content is a nightmare at best and I have thus far not found any good 3rd party CISM books out there....