Not much info around on these but I believe the price is usually $40 and at the moment they are reduced to $10. This is a short term offer for Bowel Cancer Awareness Week.
Anyone you know over the age of 50 should be using one of these kits annually ideally.
Edit: I believe most Priceline Pharmacies nationally should have this price but not sure how long it will last. The $10 includes Pathology so it is very good value.
Edit 2: Good technical info here: http://en.wikipedia.org/wiki/Fecal_occult_blood
This sounds like a great way to develop a false sense of security. I wonder how sensitive this test is. If you have reason to suspect something suspicious going on down there, or have a history of bowel cancer you should probably go see your GP. I actually don't think there is a decent way to check for bowel cancer other than colonoscopy.