Sorry for the delay in posting about my experience.
As some of you know, I filed in August 2007 and got stuck in the front-log, and was unable to do my finger prints until December 2007. However, luckily, my interview was scheduled right away for March 2008.
In Buffalo, we do not have same day oath, so I knew going in that I would not be sworn in the same day. I did know however, that I would get the oath notice right away (on the spot) if I passed, because they hold ceremonies every 2 weeks.