hi there.. I have been doing research of my own b/c i also think disney is way over priced, and i have found these 3 florisits.
charming events 407-252-8369
roberts florists 800-353-7764
blossoms wedding flowers 407-330-7825
they all seem good, and seem to have knowledg and experience of disney wedding. i think it is just a matter of preference. i have heard from these boards though that charming events was very good!
good luck!!
jamie