Whilst I've used a Cube a few times and love the way it allows me to work, I've more recently been using the Manfrotto 410 with the Hejnar adapter.
It's a great set up, allowing me to use a selection of rails to put my camera in places I can't always get a tripod in to. I think it totaled a little $350.
It's gearing isn't as fine as the 405 of the Cube, but for the majority of purposes it's pretty good.
I've recently been using the shown Induro AT413. It's heavy, it's rock solid. What I don't like about it are the twists on the legs. They can be very hard to turn and by the end of the day I get sore hands. Not good in the twilight hours when I want to move fast....
What I do like about this is it's height.....With the 410 mounted it's over 1.8M to the clamp. With the column extended (very rarely do I use this) it's over 2M.
My ideal tripod would take me well above 2M, but Gitzo seem to be the only people to make a tripod of this height. This Induro I think will be used more and more regularly.
I would love RRS to make a TALL tripod! Why don't more people make these?
I hope this helps.