Thanks everyone. Purchased a couple of 6632b's
http://www.ebay.com/itm/Used-HP-Agilent-6632B-100-Watt-System-Power-Supply-20V-5A-Fully-Tested-/112002830083?hash=item1a13e38f03:g:a8IAAOSwrnNXPs93
. Hope they work ok from what i have read and suggestions here they seems to get a great rap. And it worked out quite a bit less than the local 3631a. There doesnt seem to be much used equipment floating around in australia that i could find online.
Now just got to learn how to use them(safely)! Now what else to buy?
What else to buy? There's plenty of other things to consider:
A good oscilloscope(digital, >100Mhz), multimeter (take a dual display, bench one
it will be very useful for most of your needs), RLC tester(be sure to buy an RLC not only C ones even if it costs more), soldering station, proper solder, microscope, function generator, DC load (it's very handy to have a programmable one, because you can have a variety of loads for testing anything in between), variac for regulating AC voltage(fundamental for homemade power supply), programmable power meter,and don't forget the for fundamental items: passive probes, current probes ( quite expensive), differental probes (for testing non ground referenced circuits) and the digital probe for your scope. Active probes are simply too expensive to consider.
But, immediately, my advice would be investing in some cables: if you don't have cables, how are you supposed to connect things up? Also, take some hooks, they are very handy for grabbing all sorts of pins.
Then, in case you want to do ham radio/signaling/communication stuff, there are also:
spectrum analyzers, signal generator, attenuators, signal amplifiers (to name a few).
For used equipment, remember that the instruments needs to be calibrated from time to time, or you won't be able to test things correctly, and it's something you can't do it yourself in some cases...