To anyone attending Gencon this year: I made a Gencon data browser application that downloads the Gencon event data from their web site and lets you search and browse it in a more reasonable fashion than using Excel. Drop me a comment if you have any questions or suggestions.
Also of use is Alan De Smet’s Gen Con 2005 Event Listing, which is a web-based listing of Gencon events that combines entries identical apart from start time (in other words, it lists events that are actually distinct rather than a separate entry for each start time). However, his listing does not show what’s still available or provide filtering capabilities, so both these tools have their pros and cons. Hopefully both together should greatly reduce the pain of planning for Gencon.