Ven's right, it's not going to sharpen up into the picture you probably want it to be. He's also right that it looks pretty noise free, which is pretty good.
You can deal with noise and sharpening with PS but the trouble there is that the PS noise filters are quite crude and tend to have the effect of softening the shot. If you then go and sharpen the image you get most of the noise back and a not very sharp picture.
If you get alot of noise problems then it may be worth your while to look at getting a more specific and sophisticated solition like Noise Ninja