One of the confusing parts of MOSS is the content DB naming schema. By default it wants you to use a cryptic naming of WSS_Conent_[Random GUID]. I needed to know what DB matched up with what application so I wrote this.

http://waitingimpatiently.com/wp-content/uploads/2008/01/contentdblist.zip

The output is to a file called ConentDB_List.txt in the folder where you run it. The format is below.

Display Name: Agile Portal
   WSS_Content_agiletemplatetest
Display Name: beard.mysite.com
   WSS_Content_beard
Display Name: Cal Test
   WSS_Content_caltest
Display Name: calsandbox.mysite.com
   WSS_Content_calsandbox
Display Name: cmstest
   WSS_Content_cmstest

And Yes you should always avoid the GUID name and name it yourself with a name that means something to you.