I have this scale:
http://www.amazon.com/Salter-1004-11-Pou...9381&sr=8-3
I think it's great. Measuring cups are good for liquids and such, but if you want accurate measures of foodstuffs, weight is the only way to go (are you really getting the same amount of blueberries in a cup?).
The two features I like:
1) easy switch from metric and imperial (i find metric easier to work with).
2) Zero out. If you have a bowl with multiple ingredients, after you are finished adding the first (or second, or third, etc) you press the button to zero out the scale to make it easier to measure the next item. No more silly maths.