Besides Elsid they are already getting small arms and rocket propelled grenades through Saudi Arabia, who gets them from us. So really Obamas announcement is all just grandstanding and means nothing on the ground in Syria. They already have shoulder fired weapons and small arms. They need a no fly zone to set up rebel bases in free from attack. They need air power called in to help them advance on key installations.
But..... like i said i don't think Obama wants them to win, at least not yet.