oil leak

i have wut i like to call a major oil leak im not sure where its comming from.. the oil pan i htink i need to make a new silicone gasket for it because its leakin a little bit from there and i noticed a little puddle of ail and the exhaust manifold side of the valve cover i think the valve cover mite be loose or the gasket for the valve cover is going.. i lost 1 quart of oil in 2 weeks, but im not burning oil cuz i have no smoke comming from exhaust.. any ideas??