Not sure if you have seen this detector before; however, thought it was worth sharing with Christmas coming up. :newyear0:
http://www.adaptivtechnologies.com/gear/
http://www.cyclegadgets.com/Products/product.asp?item=TPX
http://www.adaptivtechnologies.com/gear/
http://www.cyclegadgets.com/Products/product.asp?item=TPX