This is an excellent thread on the subject, particularly Sdcampbell's contributions:
http://forum.audiogon.com/cgi-bin/fr.pl?gmusi&976325372&read&3&4&
Helped me quite a bit.
http://forum.audiogon.com/cgi-bin/fr.pl?gmusi&976325372&read&3&4&
Helped me quite a bit.