I am looking at selling my ME-50B. I have gigged with this things for a good 3 years now and it's one hell of a beast. Has got a few cosmetic scratches and sadly one of the knobs is missing (it's on the compression selection which I never use). It comes with a PSU (not the official one but still works fine). They are selling for £200+ new and as this one is used and missing parts I am looking for around £120 + postage (about £15?), unless you wish to collect.
I will post pictures in a few days but I have a gig tonight and it's all packed away and ready