As leery as I am of using NS 6.x, much less a beta, I actually gave 6.1 Beta a try. (Not sure why exacty, thinking back on it).
I was *very* pleasantly surprised!
Not only is it fast and plays Quicktimes and Flash but I can also access my online banking and my Cisco Net Academy material. (Mozilla 0.9.3 couldn't do any of this and OmniWeb can't do the last two.)
I now have a great reason to toss that IE icon out of my dock for good.
(Found a nice Aqua-based theme for it as well and it looks great!)