Comment Sharx (Score 3, Informative) 263
The Sharx brand cameras are expensive (~$280) but have many great capabilities built in, including dumping to a NAS and motion alerts with emailed snapshots. I've run them in some capacity for over five years with no trouble. My only complaint other than price is that the UI is not always very self-explanatory, and they refuse to post PDF manuals on their site, so don't lose the (extensive) paper manual.