two i didn't see listed, neem oil, or it's extract, azadirachtin are both approved... also spinosyn A/D is OMRI certified.
neem has the benefit of being an oil, and having growth retarding properties.
spinosyn is sort of a total knock out.
pest out is a decent spray as well, you may have to search around to find it but its a combo of a bunch of essential oils... check phytotoxicity on a small portion of any plants you spray, but if you're using organicide i doubt you'll have problems with any of these.
and as jay said, pyrethrum makes a decent broad spectrum killer, only problems is that some insects develop an immunity to it, and if it is a truly organic pyrethrum (not bifetrhin, permethrin, etc...) then it will break down in the sun very quickly.
13013... overthrowing the world one small step at a time.