I wish my iPod touch could....

Its coming time to do inventory. For the last 40 years the family (and some friends) have gotten together and hand counted every item in the store on paper. For the last few years I've then taken all this and entered into excel to get the final number to give to our accountant. I really wish I could use the camera on my iPod Touch as a bar code scanner where the information would drop into an excel like piece of software. I realize it would take some time to set up I think it would be quicker and more accurate. 

So I put this out to the interwebs. Is there a program that does this? Is there someone who has solved this problem already and feels like sharing??

Thanks