'The massive reductions in income that many higher education staff would sustain under the employers’ modernisation proposals are simply shocking.' said one of AUT's lead negotiators. 'Without considerable movement from them, industrial action now looks increasingly likely', he added. The new framework introduced could mean up to 40000 pounds cut in pay (over a lifetime not per year!) according to the AUT.
 http://www.aut.org.uk/index.cfm?articleid=688

Staff at Cambridge University are not directly affected by the pay cuts (they have different scales of pay, that are negotiated on the basis of the national ones.) Still it might affect research assistants (around 23000 pounds as pointed out in  http://www.aut.cam.ac.uk/HonSec/RAcomp.pdf).

The latest issue of the Cambridge AUT newsletter is more or less devoted to the plans for industrial action, how and why Cambridge will be affected by the new proposals. Q&A and background to the dispute are also included:  http://www.aut.cam.ac.uk/HonSec/AUT_Cambridge_NLetter.pdf

The question remains: How is this dispute relating to tuition fees and top-up fees?