Summoning and boommage sounds about right. Combat tricks look like primarily summoning aliens, with fireballs, magic missiles and EBT to boot, with spells like Slow for good measure. Teleport and Dim Door should help with the sneaky element.
Couple of questions for character creation, firstly I'm looking at item crafting (assuming that's OK), so what XP are we starting with? I'm not expecting to burn huge amounts, but wonder if it'll drop me the level or not?
Also what do you want to do as far as additional spells learnt? I can do it as flat I've learnt these as a wizard and no more, or can buy scrolls and scribe them into my spellbook, or work from a list from you of spells that I've found. How do you prefer, lonesoldier?
I'm intending to pick up scrolls of spells like knock etc to help with any problems with missing a rogue, but traps may remain a problem. And I need to work out which schools I'm banning to be a conjurer.. always a tough choice.