We have a 4 year old fighter at home as well. It's tough battling him but even thougher when my wife gives in a couple of hours later. I found and sent some links to her earlier today. Below are what I have found, hope they are helpful to you.
http://www.gospelcom.net/narramore/finicky_eater1.htm
http://www.fisher-price.com/us/paren...rticleid=38847
http://www.healthdistrict.org/HWlibr...ickyeaters.htm
http://www.truestarhealth.com/member...05ML4P1A6.html - read about juice