I'm considering upgrading to one of the following:

Setup1: A new Sony ICF-SW7600GR + AN-LP1 Antenna

http://groups.yahoo.com/group/7600GR

OR..
Setup2: A used Sony ICF-SW77 (and use the built in whip)

http://groups.yahoo.com/group/SONYICFSW77

Suggest you inquire in either or both groups. Excellent resources!