I need a good router HELP!!!?

Hello everyone i am here because i need a new router. I currently have the linksys wrt120n but it is VERY unreliable. I need arouter that can support a wired 2003 gateway, a wireless ps3, a wireless ipod touch, and a wireless psp. The problem with my current router is that one minute i will have an unbreakable 100% signal strength on my ps3 then the next minute, (without changing the routers position or anything) it will drop to 67-72%. Please tell me of some cheap reliable routers to buy. Thanks!!!