when I first started going healthy I started out on baby carrots, moved to gorgeing myself on water (Nalgene bottles are the shit). I just recently have found chopped dates to be lifesavers they are so fucking awesome! but they can't be covered in anything like flour (WTF?? I just recently bought some chopped dates covered in what I thought was their own natural sugars and it ended up being wheat flour, gross). Snacking on natrual things like fruits or soynuts (haven't tried them yet but I have heard they are great) is much better than snacking on chips or greasy fatty crap. Also, last but definately not least, try the water thing (it's cheap and it works) buy a Nalgene Bottle (you can buy them at any outdoors place or you can buy cool yet overpriced ones at
http://www.nalgene-outdoor.com/). The trick is just carrying a filled bottle around with you and drink till you can't whenever you feel the urge to eat. Go at it, and good luck!!