I have been using the RS supplies Psu for 5 years without any issues. Recently the low voltage wires have become exposed so I went to order a replacement. My old link no longer works but they do have a replacement. So I thought I would update this old thread just in case someone might find it useful.
Uk part https://uk.rs-online.com/web/p/ac-dc-adapters/1391777/
Euro part https://uk.rs-online.com/web/p/ac-dc-adapters/1391776/ these are on back order at the moment.
Both of these parts are around £12 incl tax.