This was on the biz wall - I'll put it in the blog for all to comment:

Hi all in the Biz community. A question - what coursebooks do you use, if at all? I'm quite fond of Market Leader but am always on the lookout for others.

Natasha's reply on my wall: 

Hello dear all I have been using MARKET LEADER for several years now all the levels /advanced level to a lesser extent though because the demand was normally up to the upperintermediate level. But I ve recently started THE BUSINESS by MacMillan which I wholeheartedly recommend. The DVD is an amazing resource for both Ss and Ts. Check it out on www.macmillaneducation.com Natasha

Any more ideas from Biz comm members?