I would need a bit more info.. but off the top of my head.. 4(250watt HPS) are plenty for a sea of green opperation.. more than enough.. I would reccomend 2 (600's) but what you have is GOOD!!

Ya know, the whole electricity thing is a crap shoot. Earlier this year they did a sting opperation in SanDiego. actually it was Carlsbad, CA ... they raided this ladies house who had 4 computers and a bunch of TV's on.. really disgusting.. On the other hand
many many of us know people who are running 10,000+ watts. I think in general you are very safe.

How it usually works from what I have read is this..
1. they get a tip
2. they bring a dog by your house.. very casual like
3. they check your electricty bill
4. they bring in the HELI.
5. they kick down your door : (

you can read all about this stuff if you google around... old newspaper articles are full of this shit. It will make you educated and paranoid... sorry.. i don't mean to be spreading fear. just want to let you know..

http://www.seemorebuds.com