"S.O.S. please someone help me".... Pet Rescue

Sorry about the song there but ya know I had to.. anyways like I said in my last post I am going to foster a rescue Great Dane before adopting him at the end of the Summer. This may be the most cost effective decision I've ever made. The puppy was going to cost $1000-$1300. But adoption is at most $500. That's a whole lot of savings!!
Yes puppies are cute and I could train him from the very start but then I think of all the previous owners who thought that too and then realized that they couldn't handle the Dane when it got bigger... and I get really mad first then I get overwhelmingly sad, it wasn't that puppy's fault it was nothing he could help, it was that human's fault. I know I always talk about planning and doing research and everything but the fact is some people don't and then those poor sweet doggies who in fact may still be puppies (albeit very large puppies) are out of a home. I think that even if I don't phone in and donate all my money to the poor puppies on TV, maybe Sarah Mclachlan will accept my adoption of a Great Dane as recompense. So here are a few Great Dane Rescue organizations whose sites I've been looking into and even some that I have contacted and had a positive experience in dealing with.
http://rescuedanecrazy.webs.com/
(ignore the Baha men in the background.. they are nice people lol)

http://www.greatdanerescueinc.com/

http://www.magdrl.org/index.htm

http://www.rmgreatdane.org/

http://www.foreverfriendsgdri.com/

if you have and site suggestions I would love to hear them in the comments and I tried to find sites that have national listings since the one I am looking at is only AL/TN. 

Thanks guys!

Update:

So I have been super busy with finals and grad school interviews and even some job interviews! But I wanted to just be clear and say I am not dead XD 
I have recently made some great purchases for my soon to be doggie!
I bought the playpen from my previous post and it should be here within the week so I will probably have a DIY for you guys next week! 
I also go the parts to make the feeder I will also do a DIY on that so you can see what I'm talking about half the time. 

UP-UPDATE: I talked it over with a current Dane mom and she has persuaded me to foster a rescue dog over the Summer with the intent to adopt in August/September. He will still be young but not a puppy she just thinks it would be best that my first Great Dane not be a rambunctious puppy.