Probably off topic, but WG5G ( http://www.qrz.com/db/wg5g
) is my personal "prototype" DX'er. Now we're talking! Relatively(!) few dollars, but a huge amount of thought and time and physics went into his station. Very impressive.
I still say that you can have a lot of DX fun with 100W and a properly installed wire. It does take some practice and skill...
Mni 73 de David, AB0Z