yes...keep in mind if you choose an outside DJ you will have to pay Disney an additional fee for letting the DJ work the reception. AND keep in mind prices change thruought the year. It may be $1500 normally, but during peak/holiday times it can be MUCH higher!! We were quoted over $2500/4 hrs during December last year. We decided against a DJ and went with the iPod setup. (GREAT idea!!! Highly recommended!!)
Different locations also cause price differences in DJs so it depends on your location as well as other variables (lighting, sound etc). We had an outside location at MGM (DHS now) and the pricing was different due to where we were.