I like the Tidy Cat for Multiple Cats formula. The important thing with it though is not to use it in a pan that doesn't have the gridded shifting tray. Since it has chemicals in it for odor control, if the buns accidently ate it, it could cause serious problems. I also tried a new paper litter last week called Kitty Soft. It's in the form of pellets, rather than in chunks, and I thought it had great odor control. My buns liked it fine and I do not believe they attempted to eat it. I paid $5.59 for 10 lbs, which may or may not be reasonable....I can't figure out how to convert from liters and quarts (which is how Care Fresh comes) to pounds (Kitty Soft). I did a posting on it but I'm not sure anyone read it and it may be gone by now.
Yes, do pursue the Timothy Hay....my guys would not eat the Kaytee brand but love the Oxbox brand. I also saw 2 ads for a pure tim hay in the 2001-2002 Rabbit Annual magazine that came out in Dec. 01. I am going to post a message in Pet Health shortly about a problem both Bunnicula and I discovered in the past week with alfalfa based hay and pellets.
Hope you end up liking the shifting tray litter pan as much as I do.