Let me recommend the 5W QRP Elecraft K1. I bought mine as a kit early in 2007 and got it with the auto-ATU and coverage of 40, 30, 20 and 15m bands although other choices are possible. Unlike the larger K2 this is a very small CW only rig. The instructions for building are first class and the finished rig works a dream, even in the crowded and noisy 40m band here in the UK. I have lost count of the DXCC countries worked with the rig but it is over 50 now in casual operating and 100 DXCC countries is almost a certainty next year after I retire and have more time. BTW, I only use a simple, low, 15m long wire, so nothing special at all by way of antennas. The rig has good styling and ergonomics and is a professional piece of kit with nice features like digital display, built-in keyer, beacon message memory. See http://www.elecraft.com
or my own website http://www.g3xbm.co.uk
for more information.