  We present 3-160 micron photometry obtained with the IRAC and MIPS
instruments for the first five targets from the Spitzer Legacy Science Program
"Formation and Evolution of Planetary Systems" and 4-35 micron
spectro-photometry obtained with the IRS for two sources. We discuss in detail
our observations of the debris disks surrounding HD 105 (G0V, 30 +- 10 Myr) and
HD 150706 (G3V, ~ 700 +- 300 Myr). For HD 105, possible interpretations include
large bodies clearing the dust inside of 45 AU or a reservoir of gas capable of
sculpting the dust distribution. The disk surrounding HD 150706 also exhibits
evidence of a large inner hole in its dust distribution. Of the four survey
targets without previously detected IR excess, spanning ages 30 Myr to 3 Gyr,
the new detection of excess in just one system of intermediate age suggests a
variety of initial conditions or divergent evolutionary paths for debris disk
systems orbiting solar-type stars.
