We used pocket doors and indoor/outdoor carpet. Bathroom should have a walk-in shower and large enough to accommodate wheelchair if needed. Also lever handles for faucets and other doors. Make sure toilet is higher than standard.
National Kitchen and Bath Assoc http://www.nkba.org/
I would also recommend putting a call in to your local ADA Center (800/949-4232) and consulting with your state's assistive technology center (http://www.resnaprojects.org/nattap/at/statecontacts.html) about products and possible financial assistance.
There are many resources available to help you with your home design:
http://www.homemods.org has a ton of resources.
Check their library.
Center for Universal Design: http://www.design.ncsu.edu/cud
National Kitchen and Bath Assoc http://www.nkba.org/
I would also recommend putting a call in to your local ADA Center (800/949-4232) and consulting with your state's assistive technology center (http://www.resnaprojects.org/nattap/at/statecontacts.html) about products and possible financial assistance.
Hope that helps!
---Jess