Honestly, anything would probably look good. But if you want to stick with long, I would shorten the sides and back and do something like the pictures in the original post of the following thread (not the first pic):
http://www.styleforum.net/showthread.php?t=204369 Also, this youtube channel has a ton of difference hairstyles and these guys post videos on how to style each one of them. You might find something there that you like:
http://www.youtube.com/user/mhrrasmus?feature=chclk Whatever you do, make sure you go to a salon to get it cut, not a barber.