-={ 2016-10-06 10:14:28.655631738+11:00 }=-

Hey Tony!

 TL> If you don't need the speed, a Pi 2 is a good choice.

Speed is nice but if it isn't taking advantage of a 64 bit system then it
doesn't make much sense to me to spend the extra money.

 TL> I'm assuming that's the input voltage rating.

Yes.  It has 12VDC and 5VDC output but offhand I don't recall the amperage.
 In the case of the pi 3 it would need to be in the 2 amp or better range
to make it fully operational (mostly usb devices) from what I've heard. 
The board itself supposedly only draws around 500 milliamps at 5V.

 TL> These days, I tend to go for switchmode converters

Those would be cheaper but then again I've already made the investment ages
ago on the DC/DC power supply which in it's day cost over quadruple what
the pi costs today.  I just have to make sure the 5VDC amperage is high
enough.

Life is good,
Maurice

... Ne deah eall soþ asæd ne eall sar ætwiten.
    It does no good to tell all truths or blame all wrongs.
--- GNU bash, version 4.4.0(1)-release (x86_64-atom-linux-gnu)