Screened wire - good all-rounder is Belden 8761 - see http://uk.farnell.com/belden/8761-06...153m/dp/761278

Farnell also stock braided sleeving, but another good supplier is VDC Trading - http://www.vdctrading.com/products_g...uctID=640#p640 - let me know if you want any ordered as can get it for around half price - carriage is £8.

HTH
Chris