Setting up wireless network

Hi guys

hope someone can help. Here's my set-up:

I have an iMac with airport. This currently wirelessly connects to an ornage livebox which allows one wireless and one wired connection.

I also have an xbox 360 connected to the live box.

I have a printer which is in the same location as the livebox and i want to wirelessly connect to the mac.

i would also like to wirelessly connect a pc laptop.

therefore my question is what hardware to i need to allow a xbox 360 connection (preferrable wired to avoid the additional fee of a wireless adapter for the xbox), wireless connection of iMAc and pc laptop and for both computers to connect to the printer wirelessly?

thanks

A wireless router with a USB for a printer and an ethernet for the Xbox. I use a Time Capsule but that's overkill really for what you want. There are a LOT of options out there though.

any recommended?

any suggested products?