Some of this is a little dated (well, it was written over 15 years ago!), but the core info is great stuff that everyone interested in QRP contesting should consider. The article first appeared in the inaugural issue of 72, the New England QRP Club newsletter, and was reprinted in the April 1992 issue of QRP Quarterly. Jim has the article archived on his web site and I highly recommend it. While you're there, poke around his site for more great QRP reading.