I have a Canon 50D 15.1 mp camera and a 16 gb card. How many photos will it hold?

So I'm new to the Canon cameras. I've always had only Nikon and said I'd never switch, but alas I did after comparing the 50D to the Nikon D90. Now the Nikon I was using was a D70 which was 10 mega pixels. And on that camera I could take 286 photos on a 512 MB compact flash card. Now the new camera can only take like 73 on the same card.
So I'm looking at getting a 16GB 133x compact flash card. Can some one tell me how many photos that will hold? I need to make sure I get enough memory since I shoot allot of weddings etc.

Have you looked at any of the photo files you've taken with the 50? Have you checked the "properties" of those files to find their mb size? If not do that then do the math… Simply divide 16gb by your file size and you'll have your answer - simple huh?

A conservative estimate would be 2080.it might even be around 2500