Networking. Hello, atm i have modem to router then router to switch with 40m ethernet then from

Question

Hello, atm i have modem to router then router to switch with 40m ethernet then from the switch 6 wired computers and an xbox 360 and nintendo wii i want to know would it be possible to connect a router to the switch and then have all the compouters and xbox and wii working from the wireless in the router? Thanks in advanced