WWH

re: the "bull bar" url you supplied. Could I just say....

That's not a bull bar.......this is a bull bar: http://www.arb.com.au/ARB_Toyota_bull bars.htm
(Look at the photos for the Lancruiser 75, 78 & 79 series - note the side rails as well).

The US accessory in the pic is what we'd call a nudge bar.

It's my personal preference to use "roo bar" for a light duty (often aluminium) affair installed as a replacement for a vehicle's standard front bumper. A bull bar on the other hand I reserve for the bloody great steel fabrications in the photos above. They're bolted to the chassis rails and sitting up to a foot forward of the grille. There's often a winch mounted in its base, a spare battery, 20 litre "jerry cans" of water and or diesel, spotlights, VHF antenna mount and sometimes a metalworking vise for those emergency repairs!! And of course - somewhere to hang the water bag! Serious items of kit - and dynamite on pedestrians, be they two or four legged.

stales