I was thinking of such a build but i couldn't find anything in the search. Basicly what im thinking is something like wizard 38/fighter1/SD1. Automatic still spell and fighter for the profencies but i have no idea how i should distrubute the classes or what feats to take becasue im no builder.

Anyone have any thoughts on this? Palemaster has the stealth skills as class skills and let you qualify for shadowdancer without crossclassing skills.
Wizard 37/PM 1/SD 2 will give you HIPS and evasion and save you 18 skillpoints compared to the fighter route. It also let you take your first SD level earlier and a second SD lvl later for skilldumping.
But you won't get the armor proficiency for free like with fighter.

A problem with a sneaker wizard in full plate is that your effective hide/move silently skills will be rather low because of the armor penalty and the (usually) low dexterity of the wizard.
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The curve is more powerful than the sword
-- BG courtesan