Yes, it would be vastly appropriate. You should also program it's startup noise to be "Two plus two is... ten... in base four I'M FINE!"
No, you should keep it's name, "BLUESPIDER" based on your computer case that has a half-glowing blue spider on it.
No, you should spend money and time on making it an exact replica of the Companion Cube, who will never threaten to stab you and in fact, can not speak.