I agree with the above, it depends on how much shake one has. The only other ways to increase camera speed is to open up the lens wide which is most likely to blow the shot out, the other is to increase the ISO. From Gordon's review on the D300s is an extract below regarding noise. I think increasing the ISO is your best option handheld as well as the above.
The review was comparing the D300s to a Canon. I would suggest having a look at the full review.
Both cameras deliver clean and detailed results at 100 and 200 ISO, the latter being the base setting for the D300s. At 400 ISO, both models begin to exhibit subtle noise textures, most noticeably in flat, shadow areas, but itâ€™s nothing to be concerned about yet.
With the sensitivity increased to 800 ISO, the D300s sample has become a little softer, but while noise levels have also increased fractionally, itâ€™s still pretty clean. Noise textures have become more apparent on the Canon sample, although to be fair they are more obvious here than with the default settings due to the higher sharpening weâ€™ve applied.
Nikon D7000, Nikkor 80 - 400G, Nikkor 18- 200 VR II, f3.5-5.6.