Re: I converted and its AWESOME!!
I used Opera and Firefox both for a while to see which I liked better. I've settled on Firefox, mostly for the plugins. There were a few opera features like the Auto refresh and the save tab state feature that I liked but those can be added to Firefox via plugins and V2 has the save state option by default.
As a developer Firefox also has a few nice Dev plugins that really sealed the deal for me.
2005 Mazda3 SP23 Hatchback, Progress Springs, Eibach Adjustable Camber Kit, Progress RSB, Mazdaspeed Shocks/Struts, TWM STS, RX-8 Shinka Rims, Sharkfin, other neat stuff