When do YOU multi-class?

[Deadguy]

On the flip side, there is only one arcane caster in the group right now, the party does a have paladin and druid to assist in healing, and my interest in magic might warrant the Wizard level now. Any more thoughts now

Well, it seems to me that you've really answered your own question. You are somewhat worried about the Undead (what PCs aren't! ), but you feel that becoming a Wizard fits with your ideas of the character. In that case, go with Wizard and keep the arcane caster company!

Of course, you might also want to talk with your DM first. He might have opinions on what is the best course of action, or can point out any difficulties you might have multi-classing right now. But I think you can make a strong case that developing a level of Wizard isn't adding a new area of study so much as it is developing up something that your character has already been exposed to in his days as a novice.