We've already booked ours! We added an extra day at the end (through ABD); I think my step-father is hoping to play golf. We're flying on United, although Southwest is supposed to be doing both routes by the time of the trip. We were really pleased that United let us price going in and out of different airports like a roundtrip.
That's neat that you're from Spring. There seem to be a fair number of people from the Houston area on these boards. We love Houston most of the year (the summer is just too hot), and we've been really pleased that DCL is sometimes sailing from Galveston. (Disney in some form gets a substantial percentage of our vacation time and money.)
We've booked ours too! Prices seemed to be pretty good so went ahead and booked. That last hotel looks nice. I'm sure y'all will love having the extra day there!