A friend had sent me this link to her videos showing off Zelda OOT with updated hd textures and abunch of other lighting additions. Doesnt exactly make Zelda:OOT look like Crysis, but a nice overhaul.
http://www.youtube.com/watch?v=02F9Aq61KmE Native 640x480. Plain ol' Zelda 64 OOT
http://www.youtube.com/watch?v=_k7FILi--EA Updated HD Textures and lighting Zelda 64 OOT
It was an interesting watch for me, just wanted to share. Enjoy!