Plugin for header image box with transition effects

I have a client who has asked for the header section of their blog to contain two image elements. One static image on the right side of the header and on the left side of the header an image box that contains a series of photos that fade in and out. One fades in and then fades out as the next one fades in. This sounds like a job for flash to me but I am no flash person so before I refer them to a flash person my question is, is there another way to do this or a plugin to do it?
thnx
colin