Since the DSD had directed me to Bamvol by pointing out where Acer Comp was, I decided to take a gander at what they had to offer. Obviously this is a computer place and they had several PCs and peripherals. I was surprised to see that they had Windows XP home addition in English. They said they could order the professional version also.
It is always good to know another PC store. When you need something in a hurry, it may take several tries before you find what you are looking for. That is assuming you can even find it in David.
To get there, turn onto Avenida Domingo Díaz from Calle Miguel Ángel Brenes (that is right by the Mitsubishi dealer) and drive to the next corner.