I would keep checking Orbitz, Travelocity, AP rates, Spring discount through disney site, and probably Expedia. I read somewhere that the system resets at 7 a.m. Eastern and any cancellations made the prior day/night would then be reflected on Disney's site so the best time to look is early morning, however, I have checked rooms in the morning and found no availability and then checked at night and found that certain rooms were then available so I would suggest checking once in the morning and again in the evening. I think the odds are actually in your favor there will likely be cancellations just keep checking. Good luck.