What about something like this?: http://www.amazon.com/gp/product/B00GZG7X9Y
Too bad about eBay. From my experience buying power supplies has been my only successful test equipment purchases.
I would buy these (what you picked) and test it at 2 amps. Absolutely do not believe specs of 5 amps. But it has the big inductor.
The 2 amp rating of breadboards came from several members, so I think this is a trust worthy number.
If you got three of these and a laptop PS supply you could come up with 3 different outputs all rated at 2 amps max and still be under the 90 watt rating of the brick.
And you have a voltage and current meter for each supply plus current limiting. Remember you will need some power resistors to test and set these up based on Ohms law.
I may buy your selection and put together a 3 output power supply myself.
You would have dual displays for each voltage and current limiting, good selection.
Do you have a Harbor Freight IR meter? If so you can test the heat ratings of the chips and heat sinks.
These things have high ripple, do you have a scope to test it with? But from what I have found out, even though the ripple is relatively high, it is not a problem. But I would place a 317 at the end of each to reduce the ripple a little just for fun.