Well, that seems doable. Are you talking about Disney World or Disneyland in CA? You can get package deals on-line. (like a 2, 3, or 4 day package) I always do things separate rather than hire a travel agent who bundles it. (those get pricey) But, if you look for an inexpensive hotel, and buy the tickets in separately, and choose to drive (or shop around of cheap flights), then, I think it's possible.
Me and my family went to Disney World for about $1300 bucks. That included our resort, food, disney world tickets and whatever else we did. We had a blast. We actually did a timeshare presentation. That's how we got it so cheap. Something to think about. The presentation takes about 3 hours of your time, but it's sooooo worth it!