I'm on Lite n Easy but found i'm not too fond of a few of the snacks and am now starting to need more snacks to bump up my calorie intake for the day. I've been buying alot of gum, the sugar free kind - good for your teeth/gums and helps with cravings cause i'm chewing SOMETHING! And yeah like others have said, water and lots of it. I'd never drunk much water, never liked it and even now i find myself forcing myself to drink enough because i tend to forge't how much you need to drink! But yeah it really helps with feeling constantly hungry.
As for snacks, I've bought hommus and celery sticks or pita bread, fruit, almond milk/blended as a low cal smoothie with one fruit!
BUT if it's something sweet you're after - I struggle with the same problem - then i'd suggest the Skinny Cow ice cream range. Low in cals and so amazingly yum! They havewith choc or caramel ice creams - on a stick (80cals), sundaes (100cals) or biscuit icecream (120cals). Another snack that fills the chocolate craving for me is a muesli bar, but the ones with a bit of chocolate drizzled over - just check the calories/etc to make sure it's not total rubbish.
Good luck from a fellow Adelaide-ian