I agree with Bandit whole heartedly. Try different rental gear. You will soon learn what you like/want to do.
When I got started, other than a ski jacket, my first purchase was boots. I still have em. As you try the different ski types, mix in different terrain. It will give you an idea where you think you will be skiing in 5 years. Personally, I like almost any type of down hill terrain, runs, snow conditions as it is much more enjoyable than say.... WORK!
Because I am willing to ski as much of the mountain as my ability will let me, I chose a ski that works well in all areas. At the time I was ready to upgrade I spent a lot of time reading reviews. I suggest doing that as well. I don't remember the websites I checked for that but I bet many of the members here could point you to such info.
Chances are if you really take to skiing, you will be upgrading gear in a few short years. With this in mind, get equipment that is suitable for your skill level now. If you are budget minded, don't go all out at the beginner/intermediate stage. If money is no object then by all means, have at it. My first skis were cheep but they did the trick. I spent considerably more when I upgraded to an all mountain, expert ski.
And I think the biggest thing is when you step out of your vehicle, standing in the resort parking lot looking up the mountain, you should have a big :D all over your face!
I hope this helps.
