[boost] Numerical integration library?

I notice numerical integration was one of the items listed in the ExpandedMathematicsLibrary entry under WantedLibraries in the Wiki. Has anyone done any work on this? I've been looking into this problem space lately; I had the germ of an idea that, with the magic of templates, most ODE solvers (e.g. Euler, Runge-Kutta, etc.) could be written in a container-agnostic format and in a form closely resembling that which you would find in a textbook. (I can post some proof-of-concept code if this isn't clear.) I've looked around and haven't seen anything similar, but I'm no expert on scientific programming. Anyone else interested or have comments? Fred