You only need a -u -p and edit bitcoin.conf if you intend to solo mine.
Aha! I new it was something simple, just could put my finger on it.
I used the flags you suggested, and it works great. FYI, the port is 9333, not 9933.

I'm now hashing in P2Pool. So far, my payout seems really weak, but I know P2P works a little differently than most pools, with higher personal difficulty and such.
I'll give it a couple days, then go back to Eclipse if it doesn't start paying similarly.
I was getting about 0.3-0.4 BTC per 24 hr on Eclipse, so we'll see....
Thanks for your help and the awesome miner!