I'm choosing to list only free filters. I'm on a personal crusade against all the high price filters that are available when, with a little creativity I can get the same results for free. Alien Skin Eye Candy Demo that lets you preview all filters but will only apply Drop Shadow and Antimatter for your use. Alien Skin Xenofex Demo that allows you to preview all filters but will only apply Stain and Crumple.
Interesting filter provides some great patterned effects.
Definitely worth the trouble of downloading and taking a look. I got some interesting effects with Blob Curve. It produces seamless tiles. Only 1 filter a beveler for square buttons and banners. Okay, you can adjust the intensity of each individual side.