* custom operstrings (?)
* halfops - probably enabled/disabled via a configure switch on in the .conf
* owner/+a prefix/cmode - see comment for halfops :D
-* "soft" callerid umode (+G, only allows PM's from users in the same channel as you)
* norepeat cmode
* kicknorejoin (+J in inspircd chmode)
* operoverride umode (+p), steal this from ircd-seven