I looked at the usual trade catalogues, but decided I didn't need the 25 metre reels. An ebay uk search for "teflon wire" brought up some suitable stuff. I bought a few metres of various colours and some is rated for 300v,600v and 1000v so you have a choice. You can get silver plated copper with pvc insulation rated for 600v also. I am honestly not sure I can tell the difference of what wire the power supply is connected with. http://www.ebay.co.uk/sch/i.html?_odkw=NAVSHIPS&_osacat=0&_from=R40&_nkw=TEFLON+WIRE&_sacat=0&_trksid=m194&ssPageName=STRK:MEFSRCHX:SRCH Happy Christmas to all the Headcases and am grateful for your helpful comments. Looking forward to having my KGSSHV built in a month (?)