SE, I was just thinking over what to do for the NaNoWriMo tracking system you wanted. Thought I'd send you an e-mail with what I was thinking so I can get started on this soon so I have have it done before the first.
1) user regester, just like twg's. Simple database stuff, or you can add everyone via thelemurs admin section (add new users).
2) log-in, here a person could enter their title, link to their stories (if the want) and enter their new pagecounts. For page counts I was thinking just an add a total, not enter the full total. So if you had 23,000 words done and then write 2,000 you would just enter 2,000 and the site would add the 2 together.
3) on the main page have a chart that would show each users current page count, probaly a bar graph.
4) Maybe a calender that would mark what your page total should be and would list who's on target for the 50k. This might not go in since it would take a bit of codeing and not sure if you want.
Let me know