With my new Macbook, I'm taking my time to set it up right. Currently I'm on the password step, and I installed Gentoo's keychain, which works awesome. Now I'm checking out Apple's Keychain, which I've used many times in the past with positive results. Firefox and Thunderbird do not store their passwords in Mac's keychain though, which is kind of disappointing.
Camino does though, so I've taken another look at it. I used it before Firefox was around, and I still like it a lot. It even has an ad blocker! One complaint is the tabbed browsing. In Safari, you can rotate through the tabs using a couple keys, and in Firefox you can option click the tab number, but in Camino, you can do it but its option-command-arrow. Ugh.
No biggie, still not sure which browser or email client to go with. I am now checking out Mac OS X "Mail" application again. I just hate that name, its impossible to find support for it because the name is so ubiquitous.