Gamesrankings.com is a great site that averages reviews across the web. Here are some games I found that I think the kids might like:
- Sports Games. Free downloads are key so they can try the games. Cnet has a great collection of sports games.
- Kids Games These are games for smaller kids under 7 or so. Amongst these, the Caillou games and Jr. Architect look pretty good and worth trying.
For bigger kids, there are the simulation games including:
- Ship Simulator 2006. You can download it, but it doesn't have sailing, but gives you big yachts around the world :-0 This game we bought and turned out OK, but ultimately it was a litlle too simple. Virtual Skipper which is just about sailing has turned out way more interesting. Basically just tooling around a harbor is kinda boring.
- GT Legends. This is a car simulation of authentic old models. It has a demo version too to try.
- City Life. This is Simcity for the 21st century with a demo version to try.
- Keepsake. An Adventure game updated and it doesn't sound like it is violent. Also has a free trial download.
Anything above say 5 feet and most kids can get into an adult small or extra small, but here is the tough part. So here are some choices for reasonably lightweight road or cross bikes:

