Hi Ben
I've just done a site for a client using a lot of CSS3 (border-radius and linear-gradients particularly) - have a look and see what you think (Pink Web Shop, Your One Stop Shop)
In order to get it to look good in Internet Explorer I used a wonderful thing called CSS3Pie which makes it all work for IE.
So the CSS for it looks like
Code:
background: -webkit-gradient(linear, 0 0, 0 bottom, from(#f8689b), to(#D9014D));
background: -moz-linear-gradient(#f8689b, #D9014D);
background: linear-gradient(#f8689b, #D9014D);
-pie-background: linear-gradient(#f8689b, #D9014D);
Hope this helps someone