I personally think any good branded wireless router will suffice.
Thinking the laptop is wireless and the ps3 and wii are not wireless e.a normal cables?
Do you have a modem now? or an modemrouter? , if so check that good before you buy the wrong hardware

if you have a modem its not a big prob but if you have a modem router right now and you order an router you cant connect to your provider becuase u need the modem, look into that.
Also cable or DSL routers and such.
Hope i could help little bb!