I liked it, but it stopped moving when the Meowhoo pop-up came up. Just kind of froze in motion at Advertiser #2. I've been having troubles with my computer lately though, so it's probably not on your end.
I think it is a good idea. Maybe instead of being certain advertisers though it could be the different catagories and when you click it takes you to all the listings. Like breeders, cat collars, crafts, gifts and so on. it would give everyone an added bonus and really inspire people to get a premium listing so there listing would be first when people click the catagory they are in.
I think it looks good. And I personally don't think it's moving too slowly - but fast-moving things irk me, so it's just my personal preference.
And I think it's a good idea to have the actual advertisers listed there (as the example is showing). The categories are right underneath, so I don't see any reason to have them scrolling up on top as well. Just my opinion.