I remember seeing little plastic cone shaped thingies that you can put on your spool post.. or you can pick up one of those free standing spool holders that would sit next to your machine and the post on it is very high.
Check out this site.
http://www.thethreadexchange.com/miva/merchant.mv?Screen=CTGY&Store_Code=TTE&Category_Code=thread-cone-holder&gclid=CILBn5bBiJICFRinQQodvBOt9w