Men's professional haircuts

[Composure]

Hey guys,

I need a few tips on a hairstyle for the coming future. I'm currently studying to be a lawyer, and am taking a clerkship (otherwise known as Articles) at a middle to high tier Commercial law firm (otherwise known as Ambulance Chasers), beginning in the next few months. The problem is that I feel as if my style isn't particularly suited to a firm that has high clothing standards, due to my hair style. I've had this hairstyle for years (after my sister introduced it to me), where my hair is generally medium-long, with a side-fringe and overly messy at the back. My hair is particularly thick (it's the native New Zealander coming out in me) and otherwise hard to maintain, as I have both a high forehead and the thickness (and curliness) causes me to have to straighten it to keep my style.

I'm wondering if anyone has any tips on a medium length hair style that could hide my large forehead, is highly professional and is easy to maintain.

Thanks.