It seems that kimariehere was concerned about,

now we just need to get the networking or routers 
i have no clue how any of that works 

You can get everything you need from geeks.com -- check their
selection of networking hardware

You'll need a wireless router and may need to add a wireless network
adapter to each PC.  Speed is an issue to consider: 802.11n is the
fastest; 802.11g is fast; 802.11b is the slowest.  You probably want to
get components that meet the 802.11g standard. 

If the router and your desktop PC are going to be in the same location
(and the PC already has a LAN interface port), just get a 6 ft. (or longer)
'category 5e' cable to connect it directly to the router. 

All of this should be doable for about $50 or less. 

Be sure to secure the network -- it's very easy.  (a category 5e network
cable will be required to do this). 

It's OK to ask me more questions. 

--
Martin