Accessibility

Hi out there,
My wife has problems with her vision and I'd like to know if there is any way of increasing the text size and other items without changing the resolution. I have done this for her and although it makes things bigger it is a little blurry. It also interferes with fast user switching. I have also tried the magnification of highlighted text but she wants an all round solution.
Any help would be appreciated.

Have you looked at universal access under the system preference application?

Tried that but it only allows magnification of selected text. is there any way to increase the size of the finder bar.