A trip to the World Fishing & Outdoor Expo at Rockland Community College in Suffern, N.Y.is well worthwhile. That huge show in the Field House runs from 1 to 8 p.m. today, 9:30 a.m. to 7 p.m. Saturday, and 9:30 a.m. to 5 p.m. Sunday. Today's free seminars of interest to saltwater anglers include Understanding Electronics from A-Z with Bill Carson of Hummingbird  at 3:30, and Small Boats for Saltwater Big Game Fishing with Shimano's Dave Schunke at 6:30. Capt. Howard Bogan says he has a forecast of light winds and air temperatures up to 39 degrees for Saturday's 1 a.m. trip to offshore wrecks for cod and pollock on his Jamaica from Brielle. Room is available. but you can check by calling 732 528-5014.