Ubertechie:
This is a fantastic article not only on general warhammer tactics but also on army selection.
It is written in the stly eof an Orc Warlord and some of the language is a bit ‘adult’ but if you can get past that its an excellent read.
enjoy
http://warmongers.ziggyqubert.com/tiki-index.php?page_ref_id=50&pagenum=1