The Pro is aluminium, but has a worse closing mechanism. The Pro has a better camera.
To the best of my knowledge, they have the same camera.
MacBook
2.0-2.16GHz Core 2 Duo Processors
1GB RAM base, upgradeable to 3GB (some have had luck with 4GB)
Intel Integrated Graphics, GMA950
13.3" Widescreen, Glossy, CCFL Backlight, 1280*800
White or Black Plastic casing
MacBook Pro
2.2GHz - 2.4GHz Core 2 Duo Processors
2GB RAM base, upgradeable to 4GB
nVidia 8600m GT (128 or 256MB VRAM)
15.4" Widescreen, Glossy or Matte, LED Backlight, 1440*900
Silver Anodized Aluminum casing