If you want to go with the latest 3D set up you will need a 3D enabled HDTV (the bigger the better),
3D Glasses and a 3d blu ray player.
Couple this to a large stereo for audio and you are looking at a pretty high entry cost if you need to pick up all the components.
Samsung has made the biggest splash in home 3D technology so far.
Go to a Best Buy or check out their site and search for "3D TV".
They have a huge offer from Samsung on their site right now.
Everything is listed as "preorder" though so I don`t think you can even get all of this technology yet as of writing this answer.
They were charging $450 just for the glasses so I think personally i will be waiting a generation or two before entering this market.