The cleric rogue multiclass seems to be one of those early 3E comboes that never got a good prestige class. In later 3.5 books I know the Mythic Exemplar and the Factotum might be interesting choices, but other than Rogue 2/Cleric X, anybody got ideas for a cleric who'd like some rogue abilities, but not have to sacrifice 1 or 2 levels of spell casting?