The first thing you need to know is that MilesBuzz is no longer a place where credit card offers are discussed. That's now all in the Credit Cards Forum.

Nest, at the top of the Credit Cards Forum is a sticky with the hottest offers:

http://www.flyertalk.com/forum/credi...scription.html

That shows:
which links to post 334 in this thread (also in the Credit Cards forum, but not necessarily always on the first page):

http://www.flyertalk.com/forum/credi...20k-spend.html