To - anyone who lives in the uk, if you live in the uk you may have heard of a largely mail order electronics supplier called maplins, if you have a catalogue look up the enamel wire section, they sell 250g reels of enamel copper 22 swg wire, which they reckon is about 1.5 Km i.e - enough to wind an 8" * 50" coil for arounf £5, that's cheap... or wrong, does anyone know how much 1m of copper wire weighs? or knows the density of copper? thanks Alex