ya know,
You really can work both situations very nicley..

A light rail requires a litel more work upon instalation butyou can get the light really close to the tops of theplants... 2 600's really does cover more space.

A 1000 cost less to set up and the electricity is cheaper.. and theoreticallly it should give bigger buds..

hmmmmmm...

I wish I had your problems.. hhehaha

: )