Base chance to get a "white" resist* versus a level 70 mob/toon is 4%. There is always a 1% chance to get a white resist, so you want to grab 3% spell hit as quickly as you can. Note that spell penetraition has absolutely no effect on these "white" resists.
Base chance to miss an equal level mob/toon is 5% when you're not dual wielding. Unfortunately I have no idea if there is a cap on melee misses, but somewhere in the back of my head is the idea that there isn't. So I would be thinking of aiming for around 5% +hit.
On the same note, I'm not sure what the base miss chance is for special attacks while dual wielding. Is that still 5%?
* "White" resist is the common name. They are basically spell misses and affected by the +spell hit stat. They are called white resists because they used to be white in your combat log, where as resists that appeared yellow were due to the mob/player having resistance gear on. All resists are now the same colour in the combat log now.
edit: I did a quick search on wowwiki and found the following:
spell hit: http://www.wowwiki.com/Formulas:Spell_hit_chance
melee +hit and +crit: http://www.wowwiki.com/Formulas:Critical_hit_chance
Base chance to miss an equal level mob/toon is 5% when you're not dual wielding. Unfortunately I have no idea if there is a cap on melee misses, but somewhere in the back of my head is the idea that there isn't. So I would be thinking of aiming for around 5% +hit.
On the same note, I'm not sure what the base miss chance is for special attacks while dual wielding. Is that still 5%?
* "White" resist is the common name. They are basically spell misses and affected by the +spell hit stat. They are called white resists because they used to be white in your combat log, where as resists that appeared yellow were due to the mob/player having resistance gear on. All resists are now the same colour in the combat log now.
edit: I did a quick search on wowwiki and found the following:
spell hit: http://www.wowwiki.com/Formulas:Spell_hit_chance
melee +hit and +crit: http://www.wowwiki.com/Formulas:Critical_hit_chance
I hate flags
"Then Honor System came out and I had b*$@& tattoo'd on my forehead and a "kick me" sign taped to my back." - Tiku
Stormscale: Treglies, UD Mage; Treggles, 49 Orc Shaman; Tregor, semi-un-retired Druid.
Terenas (all retired): 60 Druid; 60 Shaman. (Not very creative with my character selection, am I?!
"Then Honor System came out and I had b*$@& tattoo'd on my forehead and a "kick me" sign taped to my back." - Tiku
Stormscale: Treglies, UD Mage; Treggles, 49 Orc Shaman; Tregor, semi-un-retired Druid.
Terenas (all retired): 60 Druid; 60 Shaman. (Not very creative with my character selection, am I?!