The University of Cambridge University Information Services (UIS) has an assistive technology support service based at the West Cambridge Site in the Roger Needham Building. Follow the link on the right of the page. Some software is available for free.
The DRC holds a loan pool of equipment, such as ergonomic mice and recording devices, for students to borrow and try out. The DRC Pinterest site also has assistive technology boards, which might be of interest. If you have suggestions to add to the board, please get in touch.
If you undertake a needs assessment as part of your application for support funds, then you may be recommended particular assistive technology and suitable training by the provider. Your disability advisor can advise you if the process is not clear.