I need to renew some of the covers on my boat, in particular the bimini. I'm going to do it myself - I have a good industrial sewing machine.

I'm looking for some suggestions for fabric suppliers. I'm after something like Sunbrella, ie a colour-fast, breathable synthetic canvas with good UV protection. There seem to be lots of US sites providing this on Ebay, but delivery charges are pretty high. Does anyone have experience with local suppliers who can provide this type of fabric at a good price?