Pam, sorry can't help you, but I just wanted to let you know I feel your pain about having to travel during Spring Break, Summer or Winter Break!
We have two kids in school and since the older one has started middle school, we can't take him out anymore. It's very hard to find cruises in the summer, isn't it? We've done the Caribbean, done the Pac NW and Ren. isn't in Tahiti anymore. It seems like Australia cruises aren't offered during the early summer and all that's left is Europe, which is great, but it's hard to see anywhere other than port cities. Whine, whine, whine. Okay. I feel better now. :o) Good luck with your planning!