Over the past six months i have had a Linksys ethernet bridge,a Belkin gameing adapter and the easiest and the best to set up and get working was the Buffalo ethernet converter.No problems at all and only took 10 mins,what more do you want.
After trying inline 200 plugs to send via electric wiring, cost me £250 for 4 and I must say that the Buffalo WLI-TX4-G54HP-1 seems faster with no lags streaming video to my Xbox