if you're planning to ship them and do not have experience packing and shipping speakers, I suggest you search the archives on shipping. Search on "shipping". I also agree - do not use UPS. Below are 3 threads worth reading:
http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1136429596&read&keyw&zzship
http://forum.audiogon.com/cgi-bin/fr.pl?hbest&1121344971&read&keyw&zzshipping
http://forum.audiogon.com/cgi-bin/fr.pl?ymisc&1144034546
http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1136429596&read&keyw&zzship
http://forum.audiogon.com/cgi-bin/fr.pl?hbest&1121344971&read&keyw&zzshipping
http://forum.audiogon.com/cgi-bin/fr.pl?ymisc&1144034546