Skills B; Stealth Group 5, Spellcasting, Summoning, Counterspell at 6, Assensing, Perception, Etiquette, Con at whatever you can. Scrape up a Pistol skill if you've got anything left over. Oh, and Hardware with a specialization in Alarms. Just grab a point and improve it later. And of course Locksmith.
Spells, Physical Mask, Improved Invisibility, Heal, Magic Fingers, Levitate, Shapechange, Clarivoyance, Petrify, Foreboding, Stunbolt, Ball Lightning, Fashion, Makeover, Mana Net... Take Heal and 9 of those and you're golden.
Powers, Astral Perception, Increased Reflexes, One level Hang Time, Nimble Fingers, Motion Sense, depending on spell picks Trace-less Walk.