Here is the alias I am using (from now forward) for displaying bigger fonts in AFNI:
alias abig afni \
-XXXfontA \
-adobe-courier-bold-r-normal--25-180-100-100-m-150-iso8859-1 \
-XXXfontB \
-adobe-courier-bold-r-normal--20-140-100-100-m-110-iso8859-1 \
-XXXfontC \
-adobe-courier-bold-r-normal--20-120-100-100-m-100-iso8859-1 \
-XXXfontD \
-adobe-courier-bold-r-normal--20-120-100-100-m-100-iso8859-1
An even bigger option would replace the '25' above with '34' and the '20' with '25'. This works on my Mac OS X computer, don't know if it will work on Linux.