Considering adding a greyhound to the zoo

Having lost 3 bunnies since August '08, I'm feeling like an empty-nester just having SweetPea and Bandit. My first priority is definitely their level of comfort and security (not to mention safety!), but I'd really love to add a dog to the mix.

Something about greyhounds has me captivated. They seem majestic and graceful and sweet and laid back and fun. I've known a grey or two in my life (Pharaoh was an incredibly loving dog), but I'm definitely more filled with questions than with answers at this point.

Now, you may think adding a sighthound to a house with a prey animal and a shy cat is insane, but I think that if I can bond an unneutered bunny boy (Hops) to three spayed bunny girls (Ariel, Kayla and SweetPea) and have them live in peace, I can pretty much do anything with animals. Not to mention the intro of the cat (predator much?) to a mix with three bunnies (Kayla, Hops and SweetPea), two of whom became immobile (read: helpless to run from said predator) during her early residence in the house. No incidents occurred at all between the cat and the bunnies. Now, you may think I just got lucky, that Bandit would run from a fly if it flew towards her (and you'd be right, my friend), but I'd also like to think life is peaceful with my zoo because I introduced them right and took my time and let each of them know what was to be expected of them.

So I definitely need more information on the subject.

Enter my Pet Website Of The Week (if only I could keep up that pace!): GreyTalk.com. These people are greyhound fanatics. And I say that with awe and appreciation and respect. They tell it like it is. I've been lurking on their forum for like a week now and today posted a few queries to the group. I've already gotten several wonderful responses from really knowledgeable people.

So, my questions are: Are greys okay with shy cats (Bandit) and bunnies (SweetPea)? Also, do greys need to run or are a few good walks a day okay for them?

If you have any advice on either of those questions, PLEASE comment on this post or on GreyTalk.com!