Lots of boxes there last night. They looked fresh - not too picked over. If you need a barcode sheet, come and see me at Camberwell Market on Sunday before you go up to Target, or print one off yourself.
Barcodes are available for download on Brickset to help you check the minifigs series 1 (The page is in German, but the links are clear): http://bricks.inof.de/docs/minifig-barcodes/
Click here to view the barcodes and detailed pics for series 2.
An app is also available for iPhones that can do barcode recognition for you if you have one of those phones.
Or, use your Android phone to scan the barcodes at Mobile Brickset.
I am told that The Minifigures Series 3 will be released in January 2011.[1] This series and any series released after this one (if there are to be others) will not have barcodes on the packets that can be used to identify which minifigure is inside the packet, unlike series 1 and 2. (ref: http://lego.wikia.com/wiki/Minifigures_Series_3)