[LakesRegionSpirit]

Depending on what you mean by "high speed" you may find that local camera shops do not stock gear of this type since there is such a small market for it.
To me, high speed means large aperture so I assume you are looking for a F/2.8 aperture lens.
If you are looking to pair this with a zoom lens (lets say 70-200mm for the sake of argument) I would suggest buying a constant aperture lens. That means that the aperture remains the same regardless of the focal length you are shooting at.
Most local camera shops will stock zoom lenses with variable aperture. That is, as you zoom out, the aperture gets smaller.
To me, this is a pain, as your exposure is forced to change (slower shutter) as you change focal length.
I buy all my gear from B&H, Calument or KEH.
Hope this helps.