I'm going to build a new antenna I found in the 2003 edition of the ARRL Handbook. This antenna was originally published by the ARRL in their September 1984 edition of QST in which Chuck Hutchinson, K8CH, explains his "Tree-Mounted HF Groundplane Antenna".
I will be building the 20m version just in time for the CQ WW RTTY DX Contest. Hopefully it will be up and functioning in time. Hope to hear you on the air!