Just got back from my local farmfoods, doing crates of these (12 bottles) for 99p!
Normally about 99p each, or 4 for 3 quid in tescos, so good deal.
Low calories (45 per bottle) & same amount of caffine as red bull, but taste better! Sort of like lemonade with a kick.
Dates will vary, mine are end of April 2009 tho