Some here might be able to have it all ways for under a grand (USD), if they are up to the challenge.
Buy a Sigma SD1 Merrill DSLR and, say, a Sigma 17-50mm constant f/2.8 zoom.
Point here being that the camera comes with an easily removable/replaceable (with a thumbnail) UV/IR blocking filter.
In place: you get color with no color-aliasing.
Removed: you ger full spectrum (panchromatic?) sensitivity on each layer of the Foveon sensor. Usually the top layer is best but the Sigma proprietary converter has a 3-channel raw data mixer to let you play with that. And the world becomes your oyster as to lens-mounted optical filters. The Hoya 720nm, for example, is popular for shooting NIR. Or I can plunk a Schott BG38 on the lens and capture a wider range of wavelengths than possible with the removable sharp-cutoff dichroic filter.
No need for anyone to tell me how bad or slow Sigma cameras are; I've been shooting them in good light for 10+ years.