GM,OCT12,7.30AM: CRUDE$81.60( OPENS WEAK) SUPP 3625 RES 3710//NAT GAS OPENS DOWN OVER 1$,CMP$3.54//GOLD$1351SUPP AT 19500 RES 19750 SILVER$23.16 SILVER TO OPEN LOWER SUPP 34500 RES 35000//LME COPPER$8300 AFTER HIGH $8388, COMMEX COPPER$3.76 TRADING LOWER AROUND 0.50%, EXP BASE METASL OPEN MARGINALLY LOWER.