I have the pink Happy Tails stroller than so many of us do. I love it! I can't imagine not having one.
This is a really great website for selection and prices (plus free shipping). You can see what's out there and what a difficult choice you will have!
Just Pet Strollers - Free shipping on pet strollers from Pet Gear, Kittywalk, Happy Trails, Petzip, Burley and more