The sh404sef and JoomSEF plugins support multiple categories now. See an example here .
This demo runs the free version of JoomSEF. Download it here .

Outdoor

Digifeed

Digifeed

Great products - great company!

Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
Flipbox

Flipbox

We have the best products!

Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
Jaxfire

Jaxfire

We do everything!

Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
Nike

Nike

Just do it

Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
Skanyx

Skanyx

Our company slogan!

Lorem ipsum dolor sit amet, consetetur sadipscing elitr.