+1 on Caddy's advice. With all the different design parameters and nuances involved, you're going to find a range of opinions on any knife. You're gonna have to figure out what works for you and what your preferences are. When you're starting off, you just have to take your best guess based on your existing experience and then take the plunge.
Almost any knife we talk about around here is a good knife or even a great knife. A lot of what we're picking on are pretty subtle things. So yeah, think about the big factors that Caddy listed - handle style, carbon vs stainless, flatter or more curved profile. Beyond that, you're really getting into details that you'll form your own opinions about later on. Those particular big factors though are pretty fundamental to your personal preferences, style, and maybe work requirements - they may not change a whole lot over time.