Count us in, too...probably.
My DW, DD4, and I went in Feb. 2010 and wanted to go back for DD and my birthdays in January. We decided to ask the rest of the family if they wanted to come along. Everyone said yes. Sister, her DH, brother, his DGF, other brother, mom, and dad. Then everyone wanted us to change the dates...but they didn't say what dates they wanted. It's like herding cats with this group.
So we came up with 1/29/11 - 2/5/11. No one is committed yet, we are kind of waiting on August to see if Disney will release any good deals for our dates. We are also hoping the cost of flights drops somewhat. We are reasonably sure my sister, her hubby, my DW and DD and I will be going.