Immediately below is a link with Receiver Test Data for dozens of receivers including the Grundig Satellit 700 :
The SONY ICF-7600 line
Stephan Grossklass excellent Sony ICF-7600 series FAQ.
SONY
ICF-2010
Sony ICF-2010 Modifications Page
http://www.qsl.net/wd8das/2010.html
http://www.universal-radio.com/catalog/portable/0841.html
http://www.geocities.com/narayan/ This site belongs to Mr. Sriram Narayan ,has excellent Aviation Articles ,and includes a copy of the User's Manual for the ICF-2010 User's Manual (in pdf-format): http://www.geocities.com/narayan/2010_user.pdf
http://www.thiecom.de/icfsw7600.htm
NEW VERSION: ICF-7600GR
http://www.universal-radio.com/catalog/portable/0360.html
SONY
ICF-SW77
http://www.thiecom.de/icfsw77.htm
SANGEAN ATS-909
http://www.rnw.nl/realradio/ats909.html
http://www.thiecom.de/ats909.htm
http://members.aol.com/rickw999/san.htm
GE Superradio III
Not exactly a "World Band" , but it costs only 45 USD(!). Features AM and FM only ,but has decent Medium Wave performance (in part, thanks to a large/internal Ferrite-rod antenna). Also has great sound for the price ,thanks to the 2-way speakers system.