if you plan on connecting the tv to a computer,
i would suggest buying a 60hz model.
or, make sure that the 60hz/game mode actually works on a 120/240hz model.
there have been quite a few reports of lag if you do not. for instance you move your mouse and the tv displays it slightly after the fact. this is due to the post processing of the tv to fake in the extra frames. a 120hz tv still only accepts a 60hz signal.
I probably won't be doing any gaming on this TV, just mostly for Home Theater Purposes. Do i still need a TV with 60Hz Refresh?