LONDON Aug 3 (Reuters) - ICE sugar and coffee futures were firm on Wednesday, supported by a weaker dollar, as investors remained cautious over the outlook for global economic growth. Cocoa was steady with the ballooning 2010/11 global surplus weighing on prices. SUGAR * Raw sugar futures bounced in early trade as the market steadied after correcting lower in recent sessions. * Dealers said there remained potential for further downgrades to the size of top producer Brazil's cane crop. * October raw sugar on ICE was up 0.39 cent or 1.4 percent at 28.55 cents a lb at 0823 GMT, well below a contract high of 31.68 cents touched early last week. * Brazil's sugar exports should hasten in the coming months after some importers hesitated to buy due to high prices and the shaky start to Brazil's cane harvest, shipping agent SA Commodities/Unimar said on Tuesday. * Raw sugar from the Philippines struggled to find buyers because main market Japan is well stocked for now, while a drop in London whites futures from record highs spurred buying of Thai sweetener, dealers said on Wednesday. * New York Oct sugar has come to a support zone of 28.20-28.37 cents per lb, and is expected to rebound to 29.35 cents, according to Reuters analyst Wang Tao.

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