The SQLCAT team has published a very detailed (and very long) whitepaper on implementing failover clustering with SQL Server 2008. There are some major differences from 2000 and 2005 related to setup and SP/CU installs so this is worth reading even if you're experienced with 2005 failover clusters.

You can download it from http://download.microsoft.com/download/6/9/D/69D1FEA7-5B42-437A-B3BA-A4AD13E34EF6/SQLServer2008FailoverCluster.docx and the link's on our whitepapers page.

(And yes, we're still on vacation until the end of July – no real blogging/Twittering)