Ok apparently due to recent events I'm not visiting London. However, my father is interested in Morocco (possibly only because of "Casablanca").
Anyway, the brand I'm taking from New Life Foods is produced in New Zealand and can be ordered via the web (thankfully).
http://www.newlifefoods.com
And for additional info about colostrum
http://www.bovinecolostrum.com
So far the only effects I see, are increased energy, elevated mood, and clearer skin. One interesting side effect though, my hair and fingernails grow a bit faster.