No special tactics - those that work against undead (vamps in particular) should work against Bodhi. Some tips:
Use enchanted weapons - iirc you need +2 or better.
Use spells like False Dawn and Sunray. The Sunray ability of Daystar helps too.
Holy Smite (Priest spell) - affects all evil creatures (including those in your own party like Edwin, so be careful).
Summoned creatures - I like Fire Elementals.
Negative Plane Protection - protects against level drain.
If your cleric is high enough, turn undead may work also.
Use those weapons with special abilities against undead - Mace of Disruption (esp the upgraded version), Daystar, Azuredge.
BTW - Welcome to the Forum!!
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"Butt-kicking for goodness!" - Minsc
"Cities always teem with evil and decay. Let's give it a good shake and SEE WHAT FALLS OUT!!" - Minsc
[This message has been edited by Hayashi (edited 07-10-2001).]