I just came across this video, and I have to say that this technique is the fastest way I've found to reach to alpha brain wave state (where there are no thoughts). It should work really well if you have been meditating on the breath.

He also does an excellent guided meditation called "the daisy pond". You can find it here

He also gives other meditations if a person can gather "karma points", which you can get by getting other people to sign up. If you feel that I don't deserve the points then you can sign up here instead
Sticks n stones'll break my bones, but if I land the first one, you're in trouble!