updating multiple entries

I need to update multiple items from one form with one submit button.
How do I manage this?

To be more specific, I have a form very similar to netflix's queue
management. I need to load the form so that each item has a specific
:item symbol, but I don't know how to do this. Then, I assume I can
just iterate over the lot in my controller to update the items.

Any ideas on the best way to do this would be appreciated.