Hi -
I would try the Florida Center for Independent Living... they should have a resource and referral person that can help you - Here is a link to their website
www.floridacils.org/CILInfo.htm

There is a web based resource and referral for resources - you select your state and it will give you numerous links
http://www.disabilityresources.org/

Easter Seals has grants for various things and I know there are a number of agencies with grants for assistive technology.

I'll let you know if I find anything else.
Good luck -
Gabe