Really this should be in another section as its refering to mounting on digital bodies, but unfortunately your unlikely to find an adapter which will allow you to do this properly as the flange depth of the OM mount is 46mm and the flange depth of the F mount is 46.5mm so you will be unable to get infinity focus as the image is being focused further 'forward' than the film/sensor.
Technically you could use an element in the adapter to being it into infinity focus but the distances are so close that I don't think it would be possible to manufacture an adapter thin enough. Plus the element would act as a very small teleconverter and degrade image quality.
There are some places which will do lens mount changes but I don't think it would be worth it for what you want (and downright criminal destroying perfectly good lenses to put them on another body)