Hi carphunter420,
I have used chick pea quite extensively in the past though never in tinned form. You can probably find them at a store such as "Whole Foods" though make sure they are well soaked before using preferably overnight as they will swell once wet and if this happens in a fishes gut this could lead to unkown problems for the fish.

As every kind of bait pre-bait with them for a few days before using them, if they have not been used before on the water in question you could have an incredible day. I remember many years ago in UK the first time i used chick pea after baiting up for many days I have 12-15 fish in a matter of 2-3 hours - at 1 point i had 2 fish on at the same time. (Obviously 2 different rods.)