Hi Sally
You should check out the
trade directory on this website, lots of flower wholesalers are listed there.
But it really comes down to how you want to buy your flowers, id say 50% of florists still like to see there flowers before they buy, so a local wholesaler, market or flying dutchman would suit, or if you perfer to order online or off a faxed/e-mail list then ordering direct from Holland is a good way to get flowers.
I know florists down on the south coast that still drive up to covent garden to buy there flowers.