Whats the easiest way to record my game playing from the tv to my comp?
Don't know the "easiest" way, but the way I do that stuff is through a tv Tuner Card. You can get them from Newegg.com
If it's Smash Bros Melee... then you need a TV tuner card or a multimedia graphics card like ATI's All-In-Wonder series. If it is original N64 Smash Bros, you could play it on the computer with Project64 and download the ROM from the internet (ONLY IF YOU OWN THE GAME!), and record it with fraps.