GM AUG 29..8AM.. COMMODIITES TRADE LOWER AHEAD OF CRUCIAL FED MEET IN US LATER THIS WEEK/GOLD $1658 SUPPORT 30880 RES 31200 SILVER$30.60 SUPPORTS 58500-58000 RES 59300 CRUDE $95.20 SUPP 5260 RES 5350/COPPER TRADES LOWER ARD 0.50% SUPPORT 424 RES 428.60/EXP OPEN NEAR SUPPORTS/