Patrick:
I went with an 80/20 loan from Tower mortgage. They offer no-PMI, 100% loans, but not in Iowa. I have a 7 ARM, with the 80% at 5.75, and the 20% at 6.325. Even though i have TONS of credit card debt, they approved me alone for a 200k no-money-down, no-PMI, interest-only loan. I tried to go through BOA for a 100% loan but there service stank and they were less flexible. They did approve me however for a 150k loan, but that wasn't enough. My husband is not working at the moment so he couldn't help with the BOA loan. Tower is alot more flexible about the spouses employment situation and would have given me a higher limit by including my husband, but in my case, I didn't need more than 200k. If you don't have tons of credit card debt, you may qualify alone with them for 250k or more. As far as the 12 months of deferrment is concerned, Tower accepted a deferment request form filled out with my info. They know I won't request deferment until my grace period is over.
My guy at Tower is great if you want to call him. He is very low-key and low-pressure. His name is Robert Jeter and his direct line is 404-417-5164.