Looks neat - however:
I just voted for "X marks the spot" in each drop down box for the first category, then scrolled to the bottom and submitted ( leaving the other category drop down boxes blank ). Dunno if you want to program something that would give an error message if you choose the same product for more than one slot. How would the vote be tallied if you don't?
edit - I just tried to go play with the interface some more, but I can't as my IP addy has been logged ( good !). Let me know if you want me to try and break it some more!