Rod-system for supporting cameras with large/heavy lenses

$90 - basic set up
http://www.bhphotovideo.com/c/product/310716-REG/Cavision_RS_816_RS_816_8mm_Light_Weight.html

$170 - a bit more versatile/stable
http://www.bhphotovideo.com/c/product/486498-REG/Cavision_RS_15IIM_250mm__RS_15IIM_250_Rod_Support_System.html