In case anyone is wondering, I will in fact be at the OSCON 2003. My flight and hotel arrangements are made and confirmed, and I will be there the full week (though it cost me 4 days of vacation).
I can also say for certain that I will be present at the O'Reilly Authors Event on Wednesday evening, from 6:00 to 7:00 PM, followed immediately by the SOAP::Lite BOF from 7 to 8. Not sure on the locations for these, yet.