Smp stuff is great i use a modded atx to power radio gear, and its as good as gold. Transformers in the Uk are not to steep in price, chassis mount only go so high in VA ratings, teroidals go much higher, i can get a 300 VA unit for about a little over £ 30.00 not a terible price for a new unit, linear psu's are always going to be bigger bulkier in size, early smp's suffered a lot of noise, but current technology is far better today. Dave.
The thing is. I WANT to do SMPS, but I'm not 100% proficient in them yet. As in I'm still confused as to how to PROPERLY do adjustable current. I'm trying to find a design that it does it well so I can really study how to do it. Current sense? Ehhh I'm confused.