how are you going to notify winners?
PS: wonderful idea btw, me and my cousin were brainstorming about a "facebook for gamers", this is almost my vision but not quite, as there isnt really that many ways to connect to old friends. My vision included a bio where you can enter various games you have played, your clan in that game, and your name in that game, also the years you played it. For example.
Game: Neocron
Type: MMORPG
Time-frame: Launch-2005
Clans: CSM/PIMP/The Gang
Name: The Owner, Mano, Harbodeus
Game: World of Warcraft
Type: MMORPG
Time-frame: Launch-2007
Clans: The Gang/The Macabre/Paradigm Core
Name: Abram
Then you can use those fields to search and reconnect to clan mates through your gaming "career"