As I like to say, make your job what you want it to be. I want it to be 40 hours or so, therefore it is. Else I woulnd't have time for kids, workouts, and sports, and house projects. I didn't figure that out at my first job I worked at for 8 years, but at my current job that last 5 years, I dont think I've worked over 45 hours 1 week. We are severly short staffed in developers, me the only dba/developer, system admins, after hours support/help desk. But all is well, the company has been growing and making money for as long as I've been here.

If not 40 hours at this job, them somewhere else. Its not like doing IT work is getting any easier, and long hours only gets you more long hours.