If you use betterbidding.com you might be able to figure out which hotel it is. The only things to be aware of is 1- you can't control how close you are to the park, my experience has been that you usually end up with one of the convention center hotels. You just have to take the shuttle. 2- the hotel may have a resort fee, which is in addition to the nightly rate, and can be up to $15/night (I ran into that once on hotwire for the crowne plaza, it was still a great deal). 3- if you are driving, parking will be extra which can be quite a bit.
If none of these are an issue I would probably take a crack at priceline for less and if that fails book on hotwire. Either way it should be a nice hotel at a good price!