I've been using Espoma fertilizers and amendments for years growing organic vegetables. I have nothing but praise for them. If you don't want to make your own custom soil mix (which is cheaper) you can expect great things from their organic potting soil:
http://www.sears.com/shc/s/p_10153_12605_07160428000P?prdNo=1&blockNo=1&blockType=G1
-Funk
http://www.sears.com/shc/s/p_10153_12605_07160428000P?prdNo=1&blockNo=1&blockType=G1
-Funk