I am in need of filters, I want to shot out doors. I have a Evolt E-500( I have had it for 48 hours my first DSLRor SLR ever), I went to Cord camera and look at a polarizer dual coat? for $70. I don't want to waste any money on stuff I don't need. I am going to be traveling around takeing pictures of Covered bridges, light houses, lakes, water falls, rivers and maybe a few indoor/outdoor protraits. Most of the time I will be shooting at fire scenes and auto accidents day and night. I am a volunteer firefighter ans often times carry my camera with me ( I have a Optio S40 that stays in within arms reach when I am at a fire scene). Please Please Please give me a No BS list of filters I should have on hand. I like the look of the fussy water falls and waves, please advise.