i own a HP laptop which i bought from john lewis for the 2 year guarantee. it is at this moment though being repaired by hp due to the usb ports all failing

which is such a pain. i am now without my own computer. ive had to borrow a laptop to keep me going but i cant really set up it and do my work properly.
so the question is what would you do? do i buy a cheap desktop or a cheap laptop for backup in the future and for me to use for now or do i try and sell my laptop when it gets back and buy a dell for example with the support where they come to you and fix it there and then? what do you guys do?
how do you set up your email so you can run it on more than one computer? imap?