An excellent FICO, 20% down will give you plenty of haggling room with banks. Homesellers? That depends, if you're buying from a developer that needs to move inventory, you're in luck, you have lots of leeway and the real estate crunch makes it easier to get "freebies" or reduced price upgrades, if you're buying pre-owned there it gets a bit skittish. It will depend on several factors, such as, how motivated is the seller, condition of property, location, and such factors. Either way it's always a buyer's market when people come in with the right qualifications AND realistic expectations of what they can afford in housing.