After realising the big issue with getting god efficiency when designing your own SMPS I've been looking for controllers and converters to help me out. The result so far has been that there is none that is available to me and fits my needs so I'll have to turn down my current specs a bit, to say around 100mA for the two variable supplies, and do it myself.

I think I'll upload the .asc files from ltspice when I get a working circuit.