So what settings are ideal for manual?
Impossible to answer, depends on the conditions you are shooting, what light is available.
The camera will have a meter visible in the viewfinder, which will indicate under or over exposure. Set the shutter speed you want say 1/250, then adjust the aperture until the exposure meter indicates neither + or -.
You were correct in using 'Shutter Priority' for this shot, and had you actually done so you would have achieved a satisfactory result.
Manual setting both is probably better left until you have a bit more experience of the relationship of the shutter speed to the aperture, and its effects on an image, stick to either 'Shutter Priority' to freeze motion, or 'Aperture Priority' when you want to isolate a subject with a large aperture, or ensure a razor sharp image with a small aperture.
I would recommend you buy a copy of 'Digital Exposure Handbook' by Ross Hoddinott, it covers all aspects of camera exposure, in a simple to follow manner.
Just to add before all the nit pickers jump in, that was the abridged answer, to try and summarise and condense the answer in the time available, without rewriting one of the many books available on the subject
