I just came from a playgroup at a park where a friend of mine has something called a "WeeRide Kangaroo Child Carrier" on her bike. It's a bike seat for a child that goes IN FRONT OF YOU instead of behind. She told me her toddler LOVES to go for rides and shouts "weeeeeee"! Hence the name, WeeRide, I guess. Anyway, this seat is totally cool, so I had to post about it. You can find it at Amazon.com, Target, Ebay
The Kangaroo retails for around $80.00 but I've seen it as low as $30.00 on Ebay. If you search around, you'll probably get lucky and find it pretty cheap. Kent is the manufacturer of these fine seats and they also sell other kid's accessories, as well. Click the Kent link and watch a video of the Weeride Carrier. You'd also want to pick up a helmet that fits your child's head, for sure. They have a helmet that fits kids ages 2-4 yrs. Let's go ride our bicycles!