to make an community similar to www.hospitalityclub.org/ (e.g. secure.hospitalityclub.org/hc/travel.php?cid=guisardo )
to
-manage template with some required / free fields
-some pics
-ability to make comments to these "userhomepages"
-admin rights to manage pagetemplates and edit userpages and user accounts

and all this... easily?

sure. just read the bulletin. search joomla, joomlapolis, mambome and all the other site. Dont expect major support, you'll have to do the research yourself. Download it, install and try it.