This wil take a bit of work with Adobe Acrobat, but it is not too
difficult. What you want to do is create each of the parts as separate
PDF documents. That is, use the instructions to save one presentation in
the 6 slides per page handout format, and do the same for the other. Use
Word (or whatever, even PowerPoint, I suppose) to create title pages and
save each of those as PDF documents. Now open the first title page in
Acrobat and look for the option to insert another PDF document. Do this
for each of the files and save it. I haven't done this for a while, but
as I recall, the trick is making sure you insert the stuff in the right
place (there are various options, including after the current page,
before the current page, after the whole document, and before the whole
document).
Bottom line: do the merging of the files in Acrobat. If you try to get
PowerPoint to do, you are likely to be frustrated. It is pretty easy in
Acrobat.
--David
--
David M. Marcovitz
Microsoft PowerPoint MVP
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_
http://www.loyola.edu/education/PowerfulPowerPoint/