Speaking from experience, I bought the Ubuntu-based desktop from MicroCenter
and promptly installed Trisquel 7 in a dual-boot setup with no hassles,
except that the black Start switch is nearly invisible on the left front of
the black front panel. The native graphics are just fine; I'm still
maintaining the Ubuntu OS, but Trisquel 7 is my vastly preferred OS on that
machine.
I also have two bootstrapped PC's based on used Intel MB's purchased online
that also gave no hassles with Trisquel 7. I based my choice of those Intel
MB's on what I read in this forum. I actually bought three Intel MB's but one
had an intermittent electrical fault.
The three desktop PC's manually share the same monitor, KB, network cable,
and mouse ... I just move the plugs around.
My Lenovo T420 (Intel MB) laptop also has excellent Trisquel 7 on its native
graphics, and I got around its proprietary Wi-Fi with the Think Penguin USB
dongle, which is working flawlessly.
Chris is right about commercial freedom vendors, but if you're broke, the
used parts can work, too, but it will probably take more effort and it does
have pitfalls - I struggled with that defective MB for a couple of weeks.
Unless you're trying to preserve software or files on an old hard drive,
getting a fresh hard drive is a good idea.
Trisquel 7 can figure out how to use old hardware in just about every
instance that I've experienced, and you can use ClamAV to clean up that old
hard drive.
