Yeah, I've been very happy with the new version of omniweb, but the lack of css is sometimes problematic. I'm sure they'll iron it out though.
I really like that the emacs commands (at least some) are bound into it (cocoa is definitely cool). It makes filling out forms such as macosx message boards easier to fill out.
I've decided to just stop using IE. Omniweb is more comfortable to work with. That may change if they ever recode IE in cocoa. We may have to live without plugin cross-communication for a while though, and without active-x some pages just aren't going to be as cool.