GREP - find change queries
http://livedocs.adobe.com/en_US/InDesign/5.0/help.html?content=WS1952D538-1335-4b1d-BA5E-FA5A176FDC9F.html
http://www.kahrel.plus.com/indesign/grep_query_manager.html
CS5
CS5 also is meant to be unstable and slow, dont update just yet, many on forums are preferring CS3 for speed and stability...
To do:
-Find a list or automated script of common type checking like hyphens, double spaces etc etc and things to watch out for in a print doc.
-Read up once and for all about colour profiles and settings and PDF, create presets for the correct settings.
-Read up on print in general and typesetting.