Here are two charts I threw together. The data is from ARMLS and covers residential transactions for the month of January (2001-08). Most of the numbers are from the Greater Phoenix Metropolitan Area and will include sales throughout Maricopa County.  Hopefully this will give a general idea of the Central Phoenix Real Estate market.

Residential sold in January(01-08) through ARMLS

Residential prices for January(01-08) through ARMLS