I was in Cardiff a few weeks ago, but not at a time when I could meet up with Mat at AmigaKit. Reading your description of the warehouse makes me drool. I'm hoping to get back in Feb and watch one of the 6 Nations rugby games so I'll try again.
I had to make do with having my photograph taken at the "Torchwood Tower" and retrieving my original C64 out of my brother's attic - it still works perfectly! :-D
Now I just need Jens to release that C64 scan doubler/RAM expansion/accelerators/Replay/MM combo cartridge.