General Wireless Printing solution

[GTCHS]

I'm looking for a wireless print solution to accompany 3 mobile notebook carts. Each cart has 15-30 notebooks. Two of these are PC and one is Apple. The carts move between classes in a campus setting along with the access points. I can connect a printer directly to the Airport on the iBook cart which solves half of the problem. We've been considering the HP Laserjet 1320nw or possibly the 1022nw. Experiences?

Also, this may not be a very intelligent question ... (I've never set one up and it's already been a long day) but I'm assuming this is a totally wireless solution. I mean that the printer's jetdirect NIC gets an address through the AP and runs the print server. Yes?

Thanks for the help.