nvm

I can help you with http://www.elderscrolls.com/ http://www.elderscrolls.com/downloads/download-legal-arena.htm and http://www.elderscrolls.com/downloads/download-legal-daggerfall.php.
I think that you should really buy the Bethesda Pack (Fallout3, Morrowind+Oblivion GOTY) on Steam and only add Fallout New Vegas.

I'm not sure about Mass Effect, so no much help from me on that one.


EDIT: I didn't see the edit of the OP before I posted