Hi

The MeanWell brand supply that is listed in all of the build doc's runs well and lasts forever and ever. The problem with it is that you can easily find ripoff copies on all sorts of sites. There are a number of distributors all over the world that will sell you the real thing. One of the many is TRC:

http://www.trcelectronics.com/View/M...S-350-12.shtml

The new low profile version (in the link) at $33 looks like a pretty good deal. I have no idea what other dealers are selling the same thing for. If you are outside the US, a dealer in your country probably will be cheaper.

I would avoid PC power supplies due to weird per output loading requirements and marginal protection on the outputs. I am not a big fan of eBay power supplies, they seem to die early. The "real thing" is adjustable (a very good thing) and has lots of protection (also a good thing). That's not to say there is only one vendor that makes good supplies. There are several dozen out there who make excellent industrial power supplies. None of them make PC power supplies, so if that is the area you are familiar with, the names all are going to be new to you.

Bob