Having some relevant experience, I can relay some things.
How is pay, benefits, etc? How does it differ from the private sector?
Pay is typically much lower ($10-15K when I was working) for the equivalent job. Benefits tend to be more than standard private jobs. However, there is something you probably haven't thought of when it comes to public sector jobs.
The big problem you'll have with public sector jobs over private sector jobs is the bureaucracy involved. Generally public sector jobs are governed by state law, which tends to pit different groups of state employees against one another in terms of feeling favored/not favored. For example, if group x gets a general raise, group y will be up in arms because they didn't get the same raise, even if group x got the raise to meet/retain employees in the general market.
This means that in management there is a goal towards equality in treatment. Which means, your pay and anything outside what is given to all employees will be dictated on static criteria. This means that your age, years of experience and general skill classification (like where I was, it was "Information Technologist" as opposed to "Park Ranger") will wholly dictate your pay and opportunities you receive instead of any merit or value you present to the state agency you work for.
Be prepared to see worthless slobs with more years than you get paid more than you and get to do more interesting things than you. Show up, pretend to get some work done (right or wrong, as long as it's "completed"), and you'll get ahead in government work. Incompetence is as much value as competence.
I've heard over the last few years they are doing just as many layoffs as the private sector is
This leads me into my last point. As you may gather from my post above, public sector jobs are highly subject to the whims of your elected officials. Be prepared to be politically involved, because you will be whether you want to or not in taking a state job. And be prepared to be reassigned to work in other locations, and even be prepared to lose your job each day, because both would be possible at the hands your elected officials who do not know you and you have never met with no notice to you whatsoever. In other words, you can come into your job that very day and find out you don't have one.
The perception of government jobs being "safe" is accurate because the elected officials tend to largesse rather than efficiency, and would rather hire than not hire. But economic conditions since 1999 have brought many states to cut funds and cut employees.
I know it sounds pessimistic, but it is a realistic view of what you should be prepared for.
It is not possible for anyone to acknowledge truth when their salary depends on them not doing it.