It is cheaper and easier to stick with the wireless network. Being you already have a major expense item the router
You now need wireless adapters for all the systems you want connected to the network. A wired network is going to take some work; making cables, pulling cable(attic,across floors, up walls, ect.) The tools to make the cables and so on!
I know you can always do a mix of wired and wireless if you have problems with interference or distance which again there are solutions to these problems both wireless or wired. Home Networking
Edited by Greenihawk, 29 December 2010 - 02:20 PM.