I like what you mentioned, your belief of there being Something higher up than the gods, a Source where all the gods came from. Me, I've been feeling frustrated because I don't really feel a pull to any stable deity (I've felt pulled towards deities that are chaotic, but that's the last thing I need right now, so my mind's crazy *hits it*), I don't seem to really click with any. Is it okay to just focus on the Source instead of specific deities? I guess I'm just frustrated of searching. ^_^;;
The way I generally think of it is that any honor given to the gods travels up the ranks to the source, powering the source, which in turn powers the gods, they keep our world in order and do their thing, we honor them, and so on in a cycle forever.
And I really do know a few people that have made their practice about honoring the source, though they simply call it “Spirit”.
Go out and try it for awhile and see what happens. Who knows, a more stable deity may even show up for you. :)