Anessa, if I were you I'd go with Sanitas. I had a policy with them for about 12 years, and they're really good. It just makes sense to me to have more than just emergency coverage, and they're not that expensive. I don't want to scare you, but I have noticed that some Americans who go to Spain to live come down with some sort of minor medical problem the first year - usually respiratory, like a cold that won't go away - that clears up eventually. They aren't emergencies, but it is good to see a doctor to get help with something when it becomes a real annoyance. You just don't know what might happen, and poor health can really mess up your plans in a big way.
On the other hand, if you want to get more information on travel insurance, I use TravelGuard, and they seem really good (although I haven't had to file any claims - and hope not to have to!). Their website is at
www.travelguard.com and their phone number is 877-216-4885. Their website doesn't have rates for trips over 30 days, and they recommend you call them for those rates. You may want to try calling to see how they compare to the others you have info on.
Good luck!