Here are some sources for cloth (those of you who source their suit cloth themselves will know these addresses, but just the same):
Harris Tweed Highland Shop (for Harris Tweeds other than the standard bunch of patterns; watch out for the cloth widths):
http://www.harristweedshop.com/tweed-index.html
I suggest to buy your Harris Tweeds directly from the weaver instead: http://harristweedandknitwear.co.uk/shop_pages/tweed.html These are the exact same fabrics at £30.00 instead of £76.00 per meter for the double width cloth.