I'm sure I'm not the first and I'll not be the last to mention that SharePoint SP1 is now available - think of this post as Rob's own personal reminder. If you know about this news then all is good, if not then you learnt something today.
http://technet.microsoft.com/en-us/office/sharepointserver/bb735839.aspx
In addition below is a neat blog post with a whole list of hot fixes for WSS and MOSS, some part of SP1 and some not, thanks Sammy:
http://blogs.microsoft.co.il/blogs/adir_ron/archive/2007/07/11/Huge-list-of-MOSS_2F00_Office-2007-KB_1920_s-and-Hotfixes.aspx
but wait... there's more....
Official MS site about MOSS hot fixes:
http://support.microsoft.com/kb/936984
Office MS site about WSS hot fixes:
http://support.microsoft.com/kb/936988
..and of course I'd be rude not to link to the official SharePoint Group Blog:
http://blogs.msdn.com/sharepoint/archive/2007/12/11/announcing-the-release-of-wss-3-0-sp1-and-office-sharepoint-server-2007-sp1.aspx
Enjoy.