I was also looking for a AC powered solution for use at home. I went into Jaycar and saw this one.
http://jaycar.com.au/productView.asp...Max=&SUBCATID=
Steve is this the same one you use? As i see no mention of the Manufacturers model number here. I know Jaycar also sell a bigger white one that is heavier and seems better made.
There is also a Switched mode version that provide 8.5amps.
http://jaycar.com.au/productView.asp...Max=&SUBCATID=
Which is more light weight and comes with a Cigrete lighter socket output.
Regards
Fahim