Anyone into using dynamic themes on the PS3? Every once in a while I see a free one that has nice effects and 3D, but usually they are kinda silly, and most of them are nothing more than a changing or scrolling wallpaper that is pretty lame. Right now I am using one from the ICO/Shadow collection that is kinda neat. Has anyone paid for the fancier ones and found a good one that makes full use of the effects and 3d rendering capable of a dynamic theme? It's hard to tell from the PSN store what each dynamic theme actually does, or how much effects it uses, and I don't feel like spending 3 bucks on something just to try it out.