What is the difference of the cci 109 and 209 primers. I picked up 900 of the CCI 109's for $10, they were too hard to pass up.

Good one! They're dimensionally and ballistically identical - just internal design differences. From the CCI website FAQ:

Q: You used to make a CCI 109 shotshell primer. I have load data calling for a 109, but can get only 209s. What is the difference, and can I use the data.
A: The 109 was superceded by the 209, which uses different cups and anvils for improved sensitivity. However, the primers are ballistically the same. You may safely use CCI 209 primers with any load calling for CCI 109s.