Upgrade your Windows Media Connect
I stream music at home using Windows Media Connect and it works great but yesterday for the first time Windows Update offered me an update to version 2. It turns out this new version has been out for over a month but WU never offered it to me before so if you use WMC, especially you new XBOX 360 owners, you should grab it as version 2 streaming is 5 times faster than the old version.
This and the WMCE Rollup Update 2 is a must for 360 and WMCE owners.