Unofficial BBQLog: http://changelog.bbqdroid.org/#grouper/cm10/next
ROM: http://get.cm/?device=grouper (latest nightlies on top)
GAPPS: http://goo.im/gapps/gapps-jb-20120726-signed.zip (find latest at http://goo.im/gapps)
1) Backup your current ROM in recovery lest the nightly you flash won't boot or corrupts your data
2) Wipe Data/Factory reset if coming from a ROM other than CM10
3) Flash ROM (cm-10-xxxxxxxxxx-NIGHTLY-grouper.zip)
4) Flash GAPPS (gapps-jb-xxxxxxxx-signed.zip)
Unbootable - DO NOT ATTEMPT TO FLASH!
cm-10-20120909-EXPERIMENTAL-grouper-burnsra.zip (requires data wipe, do not flashover)
Credits (please consider donating a few bucks to these awesome devs who make this possible!)
Cyanogenmod Team (http://forum.cyanogenmod.com/donate/)
Goo.im (free android file hosting) (http://goo.im/sponsor-info)
Grouper maintainer (???)
If I am missing anything, please let me know!