I installed Leopard on my work comp last night. Because I was scarred of php/mysql config from Mark’s post I ended up using Mamp. Just learned of it this morning and installed it, but it’s working pretty nice. One useful thing is it makes it really easy to change your apache directory, so you could test sites out as the root of the webserver without any host file / vhost shenanigans. Also, you can quickly switch between php 4 and 5. I wish it installed as a system pref instead of an app, but still, pretty rad.