I'd do business with the 'new GM' before I'd do business with the 'new CompUSA'.
Not sure why you are disparaging CompUSA. It is now owned by Tigerdirect. I've done business with Tigerdirect for years and never had any problem with them.
They made a poor business decision keeping the old name. CompUSA earned its failure. I’m not sure why a company would want to keep negative good will, but they’ll have to accept the consequences of their choices.