http://www.ebay.com.au/itm/12V-150L-...item20bd57683b
Thats the exact one I got from same supplier. Looks like they are down to $79 free freight now too.
Mind you you do get what you pay for. All the head bolts on both cylinders were less than finger tight when it arrived, but a few minutes giving it a good going over and had never missed a beat since. I increased the cable length by another 3 metres with some heavy duty cable though so I could have the compressor next to the wheel to easily access the power switch. I have noticed the guage reads a lot higher when pumping up than actual tyre pressure, so I let it pump til it reads about 45 PSI on the gauge, power off and the gauge drops to around 35. I used to always check it with a proper tyre gauge afterwoods, but now I know exactly where to stop so dont bother.