im constructing a cab, but i was wondering about the computer monitor.  i know the bigger the better (most cases), but for just running roms and thats it, does it matter which brand i get?  theres a monitor on ebay i found thats a 21" mitsubishi monitor for like $80.  its a little used, but thats all.  will this run all the games i have?  i have old atari games, to metal slug type graphics.  i just want enough to run the stuff without looking like crap.  and also, whats a video card that is "enough" to run all the games.  thanks in advance for any help!