weight sensor?

Hi (to everyone!) I'm looking for a weight sensor, I found a different industrial weight sensors, but my intention is to connect it to arduino. After that my idea was to control the weight values with PDuino. Anyone knows about this kind of sensors? (measure between 10gr and 1Kg) Thanks in advance!

there are these force sensors (some actually pretty accurate):

http://www.sparkfun.com/commerce/categories.php?c=143

maybe you can go with some piezos and a lot of fine tuning…