How is the performance of real estate market in Raleigh, NC?

You might try playing with zillow.com, which will show you estimates
for individual properties.  If you click on one, it will give you a 12
month graph of changes in the estimate for that property.  This can be
increased to a 5 or 10 year graph.  You can also click somewhere on
that page for recent actual sales of equivalent houses.

Zillow is a new site and there are some questions about how it gets
and calculates the information.  A search with   zillow    will find
you sites about this.

Any site that puts real numbers on properties looks very
authoritative, perhaps more so than is justified, but for your
purposes, zillow.com may be of interest.