www.wysiwygwebbuilder.com

I have two links on my 'buying' pages - one for PayPal and one for Card payments (I AM aware that one can pay by card within PayPal but it's more expensive and my silver surfers are still wary of PayPal). Anyway, is it possible, when a cursor/finger is over an option, to make a button 'light-up' or indicate to the viewer that the link is ready to be clicked?

You can do this with CSS transitions see the following An introduction to CSS3 transitions example of button at bottom of page. See related tutorials for more ways.

See also:
https://www.wysiwygwebbuilder.com/link_transitions.html