This might help(on the sep pole portion anyway)

http://www.aifittings.com/j_2.htm

Here's one that might help.

www.rlights.com/id=13166

Has to be GFCI protected too. Technically this is a job for an electrician, not a handyman.

cant u just support the rec by two pieces of rigid conduit?

Legal? Yes. Recommended? No. Decent-looking? Eww.

"cant u just support the rec by two pieces of rigid conduit?"

Do you own a copy of the NEC?

Have you actually read it?

i do not have the nec, but i want it for christmas. if the rec is behind a bush, it doesnt matter how it looks.

"if the rec is behind a bush, it doesnt matter how it looks."

It is not "how it looks" that is the problem.

A conduit system is NOT ALLOWED as the support for a box as you are describing.

You might get away with using an empty piece of conduit to provide support, but the AHJ is going to take a very hard look at your installation and liable to fail it.

The idea is that the support should be at least as substantial as the conduit method being used, and equal is not likely to pass.
The support is there to protect the conduit method from failing under mechanical load.

use a deck post if it is a problem.

i mean run a piece of rigid for incoming line and a piece out to the light. concrete at the bottom, underground. called raceway supported box.

Here is a link that might be useful: whats wrong here/raceway supported bo