I really don't see Zatkoff holding any forts...he's a decent enough back-up only when used rarely, but the more he plays, the worse he plays. There's a reason Pens fans never had any faith in the guy and he was the perpetual back-up last year, even when the starter got hurt.
That said...I have to agree on the cap situation. The Kings can't wreck the cap to fit a goalie who isn't going to play once Quick comes back...still, I have very little faith in Zatkoff doing much positive. Regardless you don't make a move until you really have to. I'd give Zatkoff & Budaj October at least, by that point it should be a little easier to figure out when Quick will be back...plus Condon can likely be had for a conditional draft pick once Murray comes back for the Pens.