As always, the employees in the middle of such a change are the ones who have to make the day-to-day operations appear as seamless as possible to each other and to our clients.
While I have never been in this situation myself, (but I did stay at a Holiday Inn Express last night) I have had many friends who have gone through this scenario, and most of them have ended one of two ways:
Mass Carnage, where the purchasing firm becomes a conquering overlord and dismembers the purchased firm in a quick and painful fashion
The most comforting thing we learned yesterday in the "Congratulations - you work for someone else effective last Friday!" presentation is that our CEO, Michael Corey, is staying on as president of "Ntirety, a division of Hosting." Another positive thing is that there will be no staff reductions *and* that all currently open positions will remain open and be filled. (I had to ask that during the presentation because I have seen that first-hand before - divisions juggle and while no one gets cut suddenly all of the open positions disappear, leaving you just as short-handed as if people had been cut!)
I am always cautious (a good trait in a DBA, right?) but looking back the morning after I think this will work out well for all involved - and as an employee, I am betting my career and my family's well-being on it.