OK, just to make it clear that godless clerics are not a houserule, or even an 'option' the relevant comments from the SRD:

Aura (Ex): A cleric of a chaotic, evil, good, or lawful deity has a particularly powerful aura corresponding to the deitys alignment (see the detect evil spell for details). Clerics who dont worship a specific deity but choose the Chaotic, Evil, Good, or Lawful domain have a similarly powerful aura of the corresponding alignment.
If a cleric is not devoted to a particular deity, he still selects two domains to represent his spiritual inclinations and abilities. The restriction on alignment domains still applies.

That said, I've gotten the impression that a lot of people don't like godless clerics, or consider them a "real" option. So tell me about your veiws on godless clerics from either player or DM perspective.

Kahuna burger