The Embassy Suites by the airport has a special going until mid December (something to do with Scoobey-Doo, can't remember the exact name)...suites have 2 doubles and a sofa bed...including tax it was under $100/night and that included a full breakfast for all.
You can also try Priceline...the 3*'s by the airport are either the Marriot, Rennaissance, Holiday Inn Select or Sheraton Suites. They are going for $36 to $40/room/night...at that price you could get 2 rooms. Occasionally they also book at the Hyatt in the airport, but not too often. Right now most people seem to be getting the Holiday Inn Select or the Renaissence (for dates in Oct and Nov. We got HI for our mid-November date). We have stayed at both and they are very nice (not resort spectacular, but very clean, nice sized rooms, comfortable, etc). All of the Priceline 3* have free airport shuttles if that will be any help to you (I have been known to return the rental car that night and use the shuttle back to the hotel to save a day of car rental...if we were staying longer than a week and paying for extra days)
Any of the Priceline 3*'s by the airport are MUCH nicer than the Radisson on Palm Pkwy IMHO)