I have been working in SharePoint 2007 lately.  Learning how to do things and getting our internal processes posted (and written).  SPS is incredibly easy to use and very powerful for this.  Some of the other things I want to do elude me.  Primary among them is a pull from Exchange.

For some reason, our Exchange server is setup on a different Active Directory domain, so when I try to pull the user-data out of it, I end up with two profiles for everyone.  I have not figured out a way to pull a users info across the domains.  The problem:  abc\frankhagen == AbCo\frankhagen.  But not to a comparison operator...  There must be a way around this, but I haven't figured it out.  So for now I use a BDC to pull in human info for each profile.  (Thanks to Sahil Malik for his excellent series of posts on BDC!) 

Word of warning for BDC: the XML import file is critical.  If you don't get it just right, it will not forgive you for hours.  Start ultra-simple and work your way into it.