To my eye the scan looks fine - perhaps a bit on the subdued side, but that's a question of taste, subject matter, what you are trying to achieve with the image.etc!
What I would recommend is that you experiment with some of the settings available to you in SF8. That would give you an idea of how you can adjust the image at the scan level - before you even bring it into your Photo-editing program for final adjustments. For example; an area I normally will tweak is adjustments to the Histogram: working with individual channels vs RGB, clipping vs setting Black and White points at each distribution end-point, and making mid-tone adjustments. I will almost always make Curve adjustents.
Enjoy your setup, and don't be afraid to experiment. Last of all, post some of your results on the Gallery - this place could use a little activity.
George