After reading your guide, I saw you did not use Anatomy which is a great skill to have, for DI. May you please tell me why? Because in my opinion more damage = more life leech.
the template is too cramped to run anatomy all the time. for some mobs it's alright but it's not practical at champ spawns or situations where there is a lot of casters because you end up missing something. plus anatomy isn't really that much DI and most sampires will tell you they do fine without anatomy. as long as you are keeping up with the cycle, you should do fine without anatomy.
120 Swords, Parry, Bushido - Self explanatory
100 tactics - weapon specials and damage comes from tactics, must have.
100 Necromancy - this is how we cast vampiric embrace, necessary skill
100 Resisting Spells - paralyze, mana vamp, and mana drain hurt! not to mention how bad curse hurts at 0 resist, or blood oath.
60 chivalry - this is the only skill I wish I had more of. 60 hardly seems like enough most of the time but the template is so cramped it's impossible to fit on any more without +skill increase items
I suppose resist could be soulstoned off for some monsters, but against anything that casts:
Resisting Spells > Anatomy