You can also check these brakes out available from Amazon.
http://tinyurl.com/avubz7g
I also copied this note from the review someone posted. I thought it was good information if you do swap.
"Addtional items you need to purchase if moving from a standard canti setup:
10mm spacer (to replace the cable hanger in the headset stack)
Jagwire v-brake noodle w/barrel adjuster"