Most companies today will offer a Conforming 1st loan and a TCF Bank 2nd to 89.99% LTV. TCF issues? No short sales/foreclosures, even one from 10 years ago. Also debt to income ratios have to be below 38/45. If you're at 38.001 or 45.001, you're out of luck.
US Bank offers the same sort of 1st / 2nd combo loan. Their seconds are very attractive - a 1 year ARM or a 15 year fixed.
Wells and BofA have nice 85% LTV jumbo loans, often with very low cost PMI built into the rate. If standard jumbo 80% is 4.5xx the 85% LTV rate is often .125% higher, not much considering it's 5% less down and PMI built into the rate making it deductible.
Don't know what Compass Bank offers, but from what I've heard the costs are prohibitive. If someone has an estimate of fees they can post it would be helpful.
Kinecta Federal Credit Union offers a 90% LTV Jumbo, but expect rates in the mid 5's and never at a zero point basis.
My .02c