Skinner,

I've used 7805's and a high wattage dropping resistor to get 24V down to 5v... The 7805 works well (even when running very hot). They have thermal protection built in for when it gets too hot.

I've also made my own switcher circuits (Maxim makes some really good ones) which use a single IC and a few components. This method is more educational though.

You could try this PCB mount 24VDC-DC regulator (200ma) 1W --- SPRN01N-05 ----
Costs about A$20. Do a google to find the specs on it. it maybe just what your after. There is a 3W type with a wider input voltage too.

I haven't used them yet but plan to in the future.


Cheers
Squib