Grinch,
A mouseover is a bit of code put in your anchor text that will display whatever text you want on the bottom of some browser windows.
a href="yourlinkcodegoeshere" onMouseover="window.status='text to be displayed when the link is moused over'; return true" onMouseout="window.status=' '; return true"
It is different than text that displays on your page. My own feeling is that mouseovers are a waste of time and coding on a page.
As far as text links on your page, lots of good text that is reletive to your site is encouraged by search engines and link list owners. It will be your best friend when it comes to sales.
