Entomology- systematics in biology?

[Guppy]

I am interested in getting my degree in Zoology and then furthering that degree into Entomology. I am interested mainly in the systematic's of biology related to insects. Can anyone give me information on this career or what career opportunities there are in entomology. How successful is this career? I want to get my bachelors or more in this field. Is this a field that it is easier or harder to find a job in? Basically i don't want to put all my money into college to obtain a degree in something i will never find work in. Also I live in Pennsylvania and i have read that PA is one of the 4 top states in the US for careers in entomology. Any information would be much appreciated. Thank you