This is a perfect tool for my visual handicap. For some time, I've been using UltraPointer, but good as it is, it is limited by being an application. This causes problems, especially with expose.

Since it's a preference pane, Mouse Locator is a step beyond, and is amazingly useful as well. I like all the pointers available on their website, and the ability to create my own is a nice touch.

If you have trouble finding your mouse, this is the utility you need.