Computer Rental Available In Chiang Mai?

Hi. Does anyone know if any place rents out computers here in Chiang Mai? ... or if you have one you are not using it will be treated with kid gloves

I need a fast reliable desktop unit plus big flatscreen monitor for one month (starting now) , whilst I complete a book project.

I have a laptop which is just not practical nor up to the task, and for various reasons it's also not feasible to buy something unless absolutely essential.

Any and all leads gratefully received