Hi..These are the filters I generally use..
D3000 w/18-105mm 67mm UV (Tiffen)
D300S w/18-200mm 72mm UV (Tiffen)
D1X w/50mm 52mm UV (Tiffen), 52mm 82B (Vivitar), 52mm Set of 4 macro filters (Neewer), and for my B&W photography I have a yellow #2 (Tiffen).
So pretty small filter set as I am waiting to see what macro lens I get next 60mm maybe? 85mm still deciding..but will likely get numerous filters for it...