Originally posted by Marc Sabatella You might try experimenting with different NR options. Right out of the camera JPEg's are not so hot, but most PP programs have very simple ways to batch process an entire gig and get ISO 1600 and even 3200 (push-processed equivalent) looking as good or better than 90% of what's out there in magazines and so forth.
I haven't really looked into NR much to be honest. I had a look through your Flickr and did notice quite a few shots at F2.8 and ISO 1600 and they looked quite clean. However, in some shots the noise is quite noticeable.