QRPKits.com has introduced the next model of their famous DC-xx series, the DX-xxB where xx = 20, 30 or 40 meters.
These are single frequency QRP units that are easy to build and fun.
The QRPeanut Can transceiver featured on HamHelpDesk uses a DC-40A unit.
This easy to build QRP transceiver is a single channel direct conversion crystal controlled assembly available for use with CW.
All you need to add is antenna, keyer, headphones and power. An antenna matcher makes good sense too.