Will be my wifes birthday when we arrive in June. I know WDW and Anaheim have a bunch of special occasion events you can book. Does TDL/TDSea by chance?
You might find some good advice from this website:
http://disneytravelbabble.com/
There's some good trip reports and info about weddings at TDL/TDS, they might have other info on special events as well, or just ideas for you