Frankly, I'm not thinking any actionbar addon will be viable post WotLK/3.0patch.

Bartender 3.0 won't be. I thought I read 4.0 is the same.

Trinity (I had no luck here) is moving on to Macaroon, which one cannot use pre-patch.

Bongos3 will no be, but the developer is working on another slimmer one..

I'm just going to wait till patch, then disable bartender3 and keep playing till a victor arises from the ashes.