They are suppose to be back in stock on the 25th. That is assuming that JensonUSA gets their stuff from QBP.

If I were you, I'd not go with caliper brakes. Either keep with the linear pull brakes and use a travel agent with the brifters or us a linear pull compatible brake lever. Or, replace the linear pull brakes with cantilever brakes and just use the brifters.

Either way, you will need to replace the rear derailer. It looks like you have a 2006 FCR3, so that would mean you have a SRAM derailer that is not compatible with the Shimano shifters. I'm not sure about the front derailer. The Shimano one that is on there is only suppose to work with the flat bar shifters, but you might get it to work with the brifters, it should work fine with the friction bar end shifters.