Also, you want to do your homework and read the spec sheets of Kodak films here:

http://wwwcaen.kodak.com:80/global/e...?pq-path=13319

And Fuji here:
http://www.fujifilmusa.com/products/...ome/index.html (chrome)
http://www.fujifilmusa.com/products/...ait/index.html (negative)
http://www.fujifilmusa.com/products/...ite/index.html (B&W)

Ilford is here (120, no 220)
http://www.ilfordphoto.com/products/...essional+Films