home internet/wifi (Seville)

Just moved here and will be living in Sevilla until the end of Protected content need internet in my apartment for my job. I've checked out Vodafone and Orange in person and online but still confused. Most of the literature seems to reference phones as opposed to computing/home wireless. I currently have a small wifi device from Vodafone but it's rather expensive and cannot support the amount of uploading/downloading my job requires. I have no problem signing an annual contract if it's a better deal. Thanks for any tips!