Printer usage reports

We've got a load of Dell printers and we are just about to buy a whole load more 3115s.

I'd like some software that would provide Intranet reports showing printer usage - does anyone have any experience or recommendations for this?

Ideally, it would allow managers to see things like how many pages each member of their staff has printed, how many double sided, colour, high quality etc. Maybe it could allocate a 'cost' to each different type of print (either financial or environmental), so there can be some 'naming and shaming'.

I didn't know if Dell provided any Printer management software that would help us do this - or if there are any other recommendations?

Any suggestions?