I apologize in advance for being blunt but, wtf I'm sorry the audi's are just dressed up VW's to me and while they seem a value they're an enginering disaster. Stick with the 330 please, you'll be happy you did. BTW have you test driven them both yet? As far as them price, no way unless it's bare bones and some ugly freakin color they can't get rid of.
P.S. had this same dilema about 3 months ago that's why I mentioned the whole test drive thing. Also I don't remember Audi giving or even offering a maitence plan. Best of luck again and have fun with it... if the guy at the bimmer dealership doesn't take you on a kick ass test drive find someone different, they're supposed to show off every aspect of the car including it's legendary "feel" at high speeds... 100mph feels like 40mph.
By The Grace of God.