The only benefit that a 4wd car will have in the snow is a better ability to get moving. Otherwise, no benefit in braking or turning. Just get a set of steelies and some winter tires if you are having problems driving in this snow.
I came into work in Springfield VA. yesterday on my stock tires and had no problems...you just have to drive methodically. I haven't been able to justify snow tires, but I hear they make a world of difference.