what kind of mixes do you use for soft serve ice cream?

cuisinart soft ice cream maker image

Q. in case any of you bought the Cuisinart Ice-45 Mix It In Soft Serve Ice Cream Maker, I'd like to buy it but i don't know what the right mixes would be for that kind of ice cream machine

and also if it could be something i can buy on amazon.com easy and cheap.

Answer
http://www.getfrozen.net/store/
*****************
http://stevesfrozenchillers.com
*****************
http://shopping.yahoo.com/search;_ylc=X3oDMTFuYmVjYmQ5BF9TAzc4NDcxNjg2MQRrA2ljZSBjcmVhbSBtaXhlcwRzZWMDa2IEc2VtA3lzbQRzbGsDdGl0bGU-?sem=ysm&p=ice+cream+mixes&no_truncation=1&sp=pall