Thought this was an amazing cosplay, glad the guy did a full write up with pictures on how he created it. Definitely the best Big Daddy cosplay I've seen.
http://volpinprops.blogspot.com/2009/09/big-daddy-bioshock.html
Hope this helps some peeps looking to build their own around here.
Cheers,
Kensai
Edit: According to Belakor (Thx!) this is a 405th member - DerKraken