Welcome to our happy band of 8/14 cruisers! Living in the south of England, we've done quite a few of those cross-Channel runs (but mostly to France - never been to Belgium!) and believe me - cruisin Disney-style is in a different universe!
Even if your DD is too young to remember it herself, you'll have all those wonderful memories (not to mention photo opportunities!) to share with her when she's older! We took DD to WDW for the first time when she was 10mos and she still likes to look photos and video at the grand old age of 12yrs!
Looking forward to meeting with you in a little over 5 months!!!