Joel's 12 rules rightfully includes 2 entries on creating builds. While many would argue that rule 3 should be modified for continuous integration rather than daily, Team Build 2008 does a great job getting your team covered in both cases, and more importantly, for both rules.
With this screencast, Steven Borg covers getting automated builds and a build server set up with Team Build 2008, so if you don't have those automated builds already running, hop to it! It's like TiVo - once you have it, you'll wonder how you ever lived without it.
If you've used CruiseControl / CruiseControl.NET, Continuum, or other CI servers in the past, then you're going to be up to speed on a lot of the gains of using Team Build 2008 already, but there's still a lot of other things to learn from the screencast, so check it out!
In this episode of geekSpeak, Steven Borg shares the merits of using Team Build 2008 to radically improve the quality of the code you write. Steven gives a great overview of how to set up automated builds and a build server, and the benefits of investing the time to do it right.