I had an experience similar to [MENTION=60859]jaxgtr[/MENTION] except it took me months .... removed, relubed, adjusted and/or replaced everything except the bar tape and the saddle.

The noise was Absolutely coming from the BB area, and almost only when I pedaled, but sometimes for a second or two after .... but one time before I had had a clicking that I was certain was the front derailleur which turned out to be a loose jockey wheel in the rear derailleur, but the sound bounced up in some odd way to sound like it was up front so .....

After months of frustration and finally putting the bike on the wall for a while, I --for some reason I cannot recall or imagine---tried really cranking down hard on the saddle bolt. Apparently when I pedaled I shifted the saddle minutely---it was already rock-solid, by feel but I weigh a lot so .... and it was clicking at is scrapped over the rails. Apparently after I stopped pedaling to see if the noise stopped, I shifted a little on the saddle which made it sound like the noise was not associated with pedaling.

So ..... just get a new bike.