Super Smash Brothers Melee
Mario Kart: Double Dash
I think I'm leaning toward Super Smash Brothers Melee (it's been a while), but Mario Kart: Double Dash has it's lure as something my brother and sister might play in the mean time. This is mostly so I can get something Rob would enjoy playing as well (with me, preferably). Either way I'll have to get the money into the bank Monday.