The current configuration already looks very nice for running Trisquel and
free software games.
If a new computer really is required, I agree with mYself (funny
sentence...):
an Intel CPU and *no* video card. Linux-libre and nouveau support the GeForce
9600 GT very well (contrary to more recent nVidia cards; AMD cards do not
even provide any 3D acceleration and must absolutely be avoided).
As for the support by the Linux-libre kernel, the only other (very)
problematic area is that of Wifi cards. But, as far as I understand, it is
supposed to be a desktop computer connected to the Internet by Ethernet.
