Lets Decide!!!

Hi Everyone!
So, as we were looking up cruises, we tried to pull up our Southern Carribean cruise we are currently booked on and it wouldn't even come up... meaning it is full (we figure) We origionally thought we'd wait till Jan. (as long as we could without penalty) till we made a for-sure decision about changing cruises. But, we just got thinking that the 7 day-Mexican Riviera cruise that we mentioned will be filling up as we speak and the best rooms are being taken. SOOO, that being said.... we wanted to know if everyone wants to change cruises and we can call and switch now (or at least by Thanksgiving) and then assure we have rooms, etc.... Same thing goes though, we can cancel any rooms until Jan. without any penalty.

We are anxious to decide sooo.. We'll call everyone in the next few days and try to make a decision.
Note: we checked the almanac for the average weather conditions and temperatures for Mexico in April. The average high was 85 degrees and in the night about 58.
Link for Mexican Riviera Cruise:http://carnival.com/Itinerary.aspx?embkCode=SDG&itinCode=SD2&durDays=7&shipCode=SP&subRegionCode=MR&rateCode=B&sailingID=44690&sailDate=4/5/2009