I used the weapon from the class quests till about lvl 28 if I remember correctly. I put an aquisitor writ (?) in my secondary slot and that had 4wis on it. At 28 I bought a uhm, feysteel brigadine speer (if I remember correctly) and soloed quite a bit. One of my guildies just gave me a great 2hb staff from Varsoons though so I am now using that. I will try to remember to check tonight and post back with the correct names.
As far as weapons go I pretty much recommend just checking around on the broker for things with Wisdom on them. You probably won't find much in the weapon department but there are several options for a secondary slot item that can increase your wis 2-6 points. When ya find something you like, either buy it or come back to allakhazam and find out how to get it.