Well, far be it for me to be indescrete.... but yes definately if pictures of our noble Queen are the currency!
Avoid the TNC145 - go for a 150 or preferably 151 - make sure whatever you get has the RS232 port and is also able to receive 'drip feed' programs. Very few CAM generated programs will fit in the memory of a TNC 150/151.
I seem to remember I paid arround £2K including delivery for my TNC151b 1987 machine and with quite a bit of tooling and the extra clip on keyboard overcover to let you enter G code more easily
Andrew Mawson
East Sussex, UK