I hate wireless.
Egg, Have you seen the article on Bit-Tech about running a central DVD library?
http://www.bit-tech.net/modding/guides/2009/12/30/how-to-build-a-dvd-server/1
Normal soho grade wireless is sh*te.
Proper wireless is excellent though.
Yeah its a different game altogether. A friend of mine is the UK sales manager for Xirrus
http://www.xirrus.com/ and theyve got some amazing stuff.