Wireless router issues

I have a wireless router in my home and the problem is we have more than 4 things in our home that runs wirelessly.. ie. Wii, iphone, ipods, wireless printer, macbook, and a desktop. is there anyway or anything I could purchase so everyone in my home could use there things wirelessly without fear of being kicked off?

Going nuts here!!

Thanks
Val

the wiring will look like

Code:

modem==wifiRouter - - - - a new switch
               |
               + . . . . your existing wifi connections

Existing WiFi devices can / will still connect to the WiFi router and you can have more than just four.
You can still have four wired connection to that same router too.
By adding a switch wired to the existing router, you move one connection from the router
(to allow the switch to be connecter) and then you can use three more wired devices.

Report you make+model of WiFi router and the specifics of any problem with connecting more than just for devices and we'll attempt to respond - - -

exactly, you can connect as many devices wirelessly as your router can assign ip's.
theoretically anyway, your routers performance will probably go down before you would get kicked off.