I started using Camino early in the betas, 0.5, I believe and it's grown a lot since then. It's a good browser, especially when you need Gecko compatibility when a WebKit browser, such as Safari, doesn't work correctly. Development was stalled for so long that I moved to Firefox and lately, Flash content works so poorly on Camino (version 1.0.3) that I deleted it.
Firefox 2.0 nightly builds are still progressing and there are two things not there that Camino has that are of value to many Mac users: keychain access and native widgets such as drop down boxes. Firefox 3 is planned to have both. Right now, it's an extensible browser and it's possible to change themes. Even with CamiTools, which is good software, Camino doesn't come close.