I realise I'm personally invested in TenFourFox, but let me point out one thing: Camino is based on Firefox 3.6, which is now several cycles out of date. It won't get any more updates, security or otherwise, and even if Camino does one day rise from the ashes as a WebKit browser it's also almost guaranteed there will not be another version of Camino for PowerPC. Mozilla 1.9.2, the underlying engine, is a lot smaller, but does a lot less.
Given that, if it does everything you need, great.