I don't think so-- esepecially if a home is over 417K. The Jumbo Conforming are rates between the Conforming and Jumbo. This is for the 30 yr. fixed at least.

I can't seem to find a loan below 7% and I have a FICO above 800. The idea of saving 200K in order to get the loan down to a more manageable size seems impossible. By the time I save 200K-- homes will be even higher in price and I will need to save another 200K!

I am sure that there are lower percentage loans if you get ARMs--but I don't feel comfortable going that route.

It doesnt seem to me like the rate of 6.6 is very low. Is it still possible to get loans in the 4-5% range?

It would depend your particular situation , such as Fico scores, downpayment , full Doc loan application, on a 30 year fixed etc So these details need to be clarified.
Buy you could be looking at
30 year fixed. 6.625%
15 year fixed 6.375%
5 year fixed 6.125%

(This would be based on 1 pt loan origination fee, 80% LTV, Full Doc loan, 721 + Fico, No Pre Pay)
For zero points you should add .375% to the above rates.

If you would like more information I work with great Lender.
Dave Evans, @ Extreme Mortgage (949) 278-6120