I really gotta follow up my replies more often...

The bags're great - about the same volume as the jumbo drifters. The seat cover's a generic sheepskin cruiser seat pad from www.sheepyhollow.com (and you can even see my bike on their front page!).

The trailer hitch? Well down under we usually call it a tow bar and I use it to tow my trailer of course! I don't have a car so anything from shopping to camping to diving requires the trailer. You can get them from www.classicind.com.au