Your cheapest alternative is to buy the Linksys WGA11B Gaming adapter (between $30 and $50 depending on rebates).  If you want to fork out the dough, buy the XBOX 360 wireless adapter (its $100 but runs at 611.A)\n\nI have been running the WGA11B with my linksys Wireless B wireless router and it works pretty smooth for gaming.  If you are wanting to stream stuff off your computers then you will want to go with a G or A wireless protocal though.