Of the Sys 1 machines I've owned this one definitely has the most colourful BG & PF artwork and the most unique audio (cool growling hulk sounds) :)
How much did it cost you all up? (Only if you don't mind saying so.)

Growling Hulk - mine doesn't have that, just beeps and bloops.  Does something like the Pascal board add the extra sounds?

I got two machines at the time so when all was said and done, the machines (Hulk and Judge Dredd) with shipping from the States, port fees and customs broker, worked out about $2200 each.  So they didn't really work out being cheap as far as Aussie prices go.  Dredd needs a few plastics replaced but will be a very nice machine - it has pretty good colour in the cabinet for a Dredd.

There are a few sneak peak pics of Dredd at - http://s479.photobucket.com/albums/rr153/Talby671/Judge%20Dredd/?albumview=grid
Pics were taken at Gorgar's house where Dredd is waiting to be picked up.  Sadly for Peter, it hasn't got an Aussie lead on it yet and he can't play it.