Help connect home theater to network

[cembros]

Ok so i am trying to connect my components to a wireless network in my house. I want to connect my tv, bd player, receiver, and ps3 (i know the ps3 is wireless but i would like to have everything running through one router) to a wireless router in the room to connect to another wireless router downstairs. The router downstairs is the Linksys WRT54G2 Wireless-G Broadband Router. I have 4 cat5e cables for each device, if i were to get a seccond Linksys WRT54G2 Wireless-G Broadband Router and connect each device to the router would i be able to connect to the router downstairs. Would this yeild the best results? Is there a better way to make the connection? I would idealy like to hard wire everything and not use wireless but it is my only option.
Any help is appreciated.