same like above but additionally if you are planning to use wireless for your desktop you will need a PCI-wireless receiver which will cost you around QR200 more or less

a good product to buy is a belkin wireless adsl router+modem will cost you around QR350+ and its a 2 in 1 deal

my suggestion keep the cable coming from your neighbor and at the end of it plug in the product above and plug in your desktop computer to it this will save you from buying a PCI wireless receiver plus faster connection compared to wireless and this setup will also save you from buying the wireless extender and since the wireless router is just a few meters away from your laptop the connection will be faster and signal will be stronger

happy surfing!