re: About to take on more responsibility at work, best ways to approach a raise...

I remember when I was first out of school many moons ago that I went to work for this company making absolute peanuts, but I was confident the experience I would get there would put me in a good position later in my career so I took it. After being there for about a year my immediate boss left, I took over his responsibilities and was told that I would be fairly compensated. About 2 months later the upper boss called me into his office and let me know that I would be getting a raise.....a $.50/raise, I was like WTF? After that I decided I just couldn't stay there making nothing.....
Though at the end of the day having that experience on my resume was all that I needed to help me move up the ladder and grab much higher paying jobs.