Steve,

There have been many many threads about the difference between WT and WT+. There is some great info in the sticky guide to BA above, and this recent thread is a good one:

http://www.flyertalk.com/forum/showt...orld+traveller

Basically you get the same service (apart from a realy glass for your wine) as economy, but 7 inches more leg room, a seat that reclines more, has a leg and foot rest and is 1 inche wider. You get lap top power. The cabin is between 3 and 5 rows at the front of economy.