I bought this framed magnetic board from my local Roberts Craft store that measures 54" long by 30" high (on the outside edge). They are normally $60, but I used a 50% off coupon and only paid $30.
My favorite thing on the board would have to be these awesome magnets Leslie introduced me to. They are from a place called Amazing Magnets. Seriously, they are so cool!
The ones I bought are super tiny! You hardly notice them on the board, which is the main reason I love them. But, boy are they strong! But if you don't like tiny, they sell lots of different shapes and sizes!