If your going to test out lights, I would suggest that you set a book mark for the camera (have a look in the help files or happy mats video tutorial) and render from there.
Also make sure that your default lights off (in the render globals) then use the "7" hotkey to see how the lighting's looking via the graphics card to get a feel then render with one light setting that up to be the key, then use another for the fill, then another for the back/rim, add mre if required from there.
HDR is using an imageto light the scene, I doubt that you would need it here, theres plenty of tutorials on using them, but its best off lerning to light without it.
"No pressure, no diamonds" Thomas Carlyle