There is a knee-jerk reaction among some people to dismiss IDS outright because it can feel fluffy and non-valuable. The research center I work for started an Office of Interdisciplinary Programs the year before I started, and it's growing rapidly.
After going in for an appointment, it sounds as though I may well be able to graduate faster as an IDS (meaning I'm nearly done, with credits that I care about which actually count in the major like my 4 physics classes) and I'll be able to peacefully transition into Physical Sciences/Computational Sciences Areas of Study (similar to a slash from New College, my brothers' alma mater - see Joint AoC at bottom of page) with a built in History minor. Thanks for bringing this back into my scope of awareness. Scheduling another appointment to make a formal switch. Hawt-diggity-dog!