I've been using Palace gear (it's bagged up as Excel Bond at Tile Clearing House stores) and to be honest it's dirt cheap and does what it's supposed to do.
I don't understand why some traders would spend £25.99 on a BAL product when at a Tile Clearing House you can get the same stuff for £13.50!!
My local one in Orpington, Kent has just started selling a slow-set white powder adhesive for walls and floors, interior and exterior, for £12.99 a 20kg bag. Can anyone beat that??
#Best Tile Adhesive for Walls and Floors 2007 Pro Tile Fixers Poll