I did this afternoon a chroot base (debootstrap) "install" of wheezy and 
proceeded to install Trinity to it. Rather than the "official" method 
(which uses metapackages, e.g. kde-trinity) I used a custom list of TDE 
applications for a "light" TDE.

My list is posted here: http://paste.debian.net/131358/

I could convert this to a "real" install later, but for now I want to 
see what dependency issues there might be.

I identified the following, all of which are deprecated in Wheezy but 
available (and installable) from Squeeze :

libavahi-qt3-1
libsensors3
libmtp8
libpoppler-qt2
libpoppler5

There may be others in a more full TDE setup. So far it seems that 
enabling Squeeze repos in Wheezy still allows TDE to install without errors.

Hope this helps anyone wanting to try Testing, maybe even LMDE or Sid