The PCP&C 600 watt wasn't that messy but considering it was more than twice as expensive as the enermax, it really didn't appear to be any better in build quality.
I wasn't impressed, it also suffered from an annoying coil buzz.
I'd be interested in some pics of the Lamda PSU you have, cost is not a major factor I just like something that's better designed and put together.
I have a Lowe SPS8400 bench PSU, here that is rated 3v - 15v DC at 40 Amps continuous. True it is a larger item, but that doesn't change the fact it is a huge leap in overall build quality over any PC PSU I've come across, at a constant 22 amp load @ 14V it runs no more than warm with just a low speed 80mm fan. not overly expensive being a similar price to the Enermax, Antec, and Q-Tec, (far cheaper than the PC Power and Cooling 600 watt).
Here are a few images of it:-