GrooveIT! for Outlook should fit your needs related to contacts integration into Groove.More details on this site at : http://grooveuser.org/blogs/3rdparty/archive/2007/04/13/GrooveIT_5F00_For_5F00_Outlook_5F00_Overview.aspxYou can also visit http://www.grooveit.biz to have a look to this add-on and give it a try (free trial available)Regarding ...