If you have a file explorer type app (I use Ghost Commander, but there are others), you can put about any boot animation on your phone. Just replace the bootanimation.zip in the system/media folder with another. There are some floating around here, and at XDA, just do a search for boot animation and you should be able to find a zip package to suit your taste. The other option is to create one using your own images, or (as I did) parts from a couple other animations. Again, I learned everything about this here and on the XDA forums, but I'd be glad to give advice.