Below is a long thread on DIY rod-n-block racks. It can be done more cheaply than I did it, if you avoid brass parts. I quite like mine. Lots of flexibility in configuration. John
http://forum.audiogon.com/cgi-bin/fr.pl?htech&1158841915&openmine&zzJdoris&4&5#Jdoris
http://forum.audiogon.com/cgi-bin/fr.pl?htech&1158841915&openmine&zzJdoris&4&5#Jdoris