CCL:G: QM/MM question

[Maurizzio <m.argonni(a)gmail.com>]

 Dear CCL'ers:

I would like to perform some QM/MM calculations but I
 don't seem to be able to find adequate software for it that is free for
 academic use. Are the choices really so limited? So far, I am aware of GAMESS
 interfaced to a very dated version of Tinker and then QMMM software from Dr.
 Truhlar's lab that is able to use also GAMESS and Tinker albeit in a limited
 way because of limitations in GAMESS.
 
I have no money to pay for Gaussian or Schrodinger's Qsite and I sort of
 refuse to pay 500 UK Pounds for Chemshell on the basis that I am not British
 (not to mention that most of the software they use as a base for theirs is free
 and/or developed elsewhere).
 
Anyway, I would appreciate any insights into what choices I have for 
 QM/MM software that would allow me to do calculations like geometry
 optimizations, transition states, etc. in protein systems. Thanks for the
 help!
 
Maurizzio