I always find there are many brides who opt for a longer dress just because its traditional and not necessarily because it suits them. Of course if you want to stick with tradition that's absolutely your choice but considering a shorter dress ... especially if you are a little shorter yourself and worried that a longer dress might swamp you ... is definitely an option.
You may also want, if its in your budget, to consider wearing a more formal long dress during your ceremony but change into something a bit shorter and more 'danceable' for your evening reception!
Either way two of my favourite sites www.bhldn.com and www.kittyanddulcie.com have some lovely options for shorter wedding dresses.
all from www.bhldn.com
all from www.kittyanddulcie.com