Great clip from NBC Nightly News about when its worth it to buy organic. As explained, organic meat doesn't tell the whole story - so look for grass-fed instead. Organic dairy products are particularly important, and the clip gives good tips on which fruits and vegetables are worth the extra pennies, and where you can save and buy conventional.
Look for grass-fed beef and a great selection of organic, local produce at your farmer's market. The Vancouver markets have at least two farmers selling grass-fed beef, and pasture-raised chicken every week! Find your closest market here: http://eatlocal.org/markets.html
And for a great list of which fruits and veggies are most important to buy organic, check out this site, which has a 'Shopper's Guide to Pesticides', which includes the 'Clean 15' and the 'Dirty Dozen'. http://www.foodnews.org/