Indeed. (EFnet, I believe, has services but not using chanserv or nickserv).
My personal favorite is
ChatSpike. I happen to have several channels there (including the unofficial
ChiefDelphi channel and the official
FURC channel). it also has something called LaveServ.
Goober happens to use
Esper, though I'm not so much of a fan of that.
Both Esper and ChatSpike have ChanServ, NickServ, and MemoServ.
Have fun!