Wow! Great call - What a band Mirrors were. I was very lucky to see them at the Green Door Store in Brighton before they disbanded. Great shame as i thought they could have made it on to the mainstream scene, they were that talented.
Check out local bands 'Battery Operated Orchestra' and' Vile Electrodes' from Newhaven and Hastings respectively. Both producing great synthpop and play live locally a few times a year. Google them and lots of their stuff will come up. They should be much bigger but pure synthpop is probably...