The children will remember the moment that you break the news for the rest of their lives, most likely. It's pretty important to get right and IMO this has to be about your kids, not about "making the W feel the consequences of her actions".
take care...
me: 42 | STBXH: 41 | T: 18 | M: 10 | separation: Jan 3, 2010 | they deserve better: S7 & D4 current thread: http://tinyurl.com/3y8sxcp .: first breathe, then heal, then start LIVING :.