My wife and I will make about $400K this year. Our personal debt (credit cards) is $0 and our current 15 year mtg. has $300K and 10 years remaining at a fixed rate of 5.375%. Where is the best place for us to invest our $$ in an effort to hang onto the bulk of it?? We are maxed out on our anual 401K's, etc. Thanks, Bob & Phyllis 49