If you're gonna harvest in a week or two, don't feed it anymore just give it straight water. Pick up one of those pocket microscopes from your local radio shack for like 10 bucks and you can check the color of the trichomes to find out for sure when it's ready by checking how many are clear, cloudy, or amber. You can find more info about harvesting in the grow faqs I believe.

Looks gorgeous though man, what's her name? And any chance of getting a pic with something next to that bud for size comparison? That cola looks like it would give a horse penis envy.