I tried a 4 star starting from $40 up to $53 unsuccessfully in these areas:
Disney Area - Lake Buena Vista
Downtown Orlando
Intl. Drive - Pointe Orlando
Universal Orlando Area - Intl. Drive North
Universal Orlando Resort Area
I probably could have gotten it for $55 but with the resort fees, it would have been $89 total and that was more than I wanted to spend for just one night since I am going to a concert and we just really need a bed to sleep and shower before driving home to Miami in the morning.
Embassy Suites in Lake Buena Vista was $53 Express... again... too much with resort fees.
So, I went with a $40 bid in Intl Drive and for the Rosen Inn. Pretty happy with it.
I used the PRICELINE link here on better bidding.