... (the images come out magenta, but I desaturate them in the RAW conversion)...
Just happened to take some IR landscape shots today in sunny Brunei, using the Nikon D70, kit lens and Kodak Wratten 88A gel.
I did a Pre-set White balance with the filter ON (this practically eliminates the red/magenta cast that any of the other white balances give). The result was an almost neutral B&W image. Best exposure was at +2 EV using Aperture preferred metering, and autofocussing with the filter on! Of course, no viewfinder image was visible, so a tripod is needed to compose before putting on the filter.