I just finished up my free trial of three months yesterday (3-24-08) and using the instructions provided on this board got the $77/yr deal.
However, if you follow the business news the merger of XM/ Sirrus was OK'ed by the federal gov't and will go through. The Satellite companies successful argued that there is already competition with digital radios, Ipods, etc. and this would not create a monopoly.
To make a long story short....don't count on $77/yr next time around
