I have the Nik Color Efex Pro 3.0 Complete that came with Paint Shop Pro X5 Ultimate when I did the Upgrade.. and at the 'right price' $41 ...a lot more Nik filters than I'll ever get to use.. seem to work very well..
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my Canon 60d sure beats using that ol' Petri 7s
Canon EOS 60D
Canon EF 400mm f/5.6L USM
Canon EF-S 15-85mm f/3.5-5.6 IS USM
Canon EF-S 17-55mm f/2.8 IS USM
Canon EF 70-300mm f/4-5.6L IS USM