That is a ridiculously large amount to be spending on groceries, even if you eat every meal at home. For comparison, I think I eat quite well and I spend well under $300/month (my goal is $50/week). A lot of this depends on your area, but I highly recommend checking out any ethnic[1] grocery stores in your area. The supermarket I shop at is, large, clean, and has comparable produce for 1/2 the price or less as the conventional supermarkets in the area. This is in Southern California, but I had a similar experience in Austin, TX and south-eastern Michigan, so I think it applies to most places in the US.
Also, organic foods are nutritionally equivalent to conventionally grown foods according to the most recent research; you may want to reconsider your budgeting on that front.
[1] I've been told this is not the politically correct term, but I'm not sure what the right one is; suggestions welcome! What I mean by this in reality is usually something like "Indian/Chinese/Mexican grocer."
The thing is, I read "Super Immunity" by Joel Fuhrman and I've been obsessed with following his recommendation of eating greens, onions, mushrooms, beans, berries and seeds every day. Whole Foods is the only place around here where I can get all of these grown organically.
Pesticides scare me. Especially since I can't be bothered to wash my food before eating it. But as I understand it, if you use pesticides, then the plants don't produce their own natural chemicals that fight off pests and other symbiotic organisms. I don't remember where I read it but according to my research those chemicals are very beneficial part of the total nutriment.
Not to mention it's expensive. I spend about $1200 a month just at Whole Foods, mostly on organic and raw foods. And that's just for myself.