Cheap Hotel/motel stay at or near Guangzhou Baiyun Int'l Airport

I will be arriving Guangzhou Baiyun Int'l Airport at 0205hrs after midnight and I am looking for a cheap hotel stay near or within walking distance from the airport itself. Can anybody tell me whether there is any cheap hotel stay? Any website to look for? Is there any 24hrs service cafe or fast food restaurant inside Guangzhou Baiyun Int'l Airport? Thanks