Trading in your familiar

[Storyteller01]

...insert minor hijack here....

Is there any PRC, feat, etc that allows a divine familiar other than the Magic of Faerun's Mystic Wanderer 2nd level ability?

Is the staff familiar only for arcane casters? I had a character with the two level dip in MW and Improved Familiar feat and it was great fun to have an eyeball beholder float out of my cleric's pack in certain situations.... just curious if that was the only way to get a divine familiar.

Be a druid?

j/k. Another third party source has a shaman type caster that gains an incorporeal familiar.