Just to let anyone who dabbles with convolution speaker IRs, I posted a set I did of my 2x12 vintage celestion G12h (open back) at the noisevault site. (Under: Grant Ransom). 4 mics, many different positions, (free).
http://noisevault.com//index.php?option=com_remository&Itemid=29&func=selectcat&cat=18
Grant.
For anyone that wants to hear the differences with high-gain guitar...
http://mysite.verizon.net/vzeoicc8/speaker/