Trackball:
Wave™- A device with an over sized ball that has a silky touch also comes with colored coated buttons
  • Helps people with muscle spasms
  • People with motor disabilities
  • People with hand eye coordination problems

Website:
Ablenet. "Wave." Ablenet.com. Web. <http://www.ablenetinc.com/Assistive-Technology/Computer-Access/Wave%E2%84%A2-Switch-Adapted-Trackball>.

Uses:
  • Used for helping people move around
  • Helps people play video games or use the computer
  • Helps people in wheelchairs

AbleTrack Assistive Technology Trackball - A device that helps people with arthritis, carpal tunnel, RSI, or people with little use of the fingers/hands.
  • Helps people with arthritis, carpal tunnel, RSI, or people with little use of the fingers/hands.
  • Helps people who have splints on their wrist or fingers
  • Helps people with Muscular Dystrophy
Website:
MetaSystems. "Technology Trackball." Jazdtech.com. Web. 01 June 2012. <http://www.jazdtech.com/techdirect/company/MAB-Assistive-Technologies/AbleTrack-Assistive-Technology-Trackball.htm?supplierId=60014302>.
Price: $98.85

Oversized Track Ball Mouse – A mouse with an oversized trackball and buttons.
  • Helps people with muscle spasms
  • Helps people with tremors
  • Can also be used with the persons feet if they have enough motor control
Website:
WebAim. "Motor DisabilitiesAssistive Technologies." WebAIM: Motor Disabilities. Web. 01 June 2012. <http://webaim.org/articles/motor/assistive>.

Personally the one I would get would be The Wave Trackball. It has large color coated buttons and a oversized trackball thats easy to use. Aso the website seems relaible and it seems like they would provide good service.wave-200.png