People on here tend to recommend skis that are way too long.  The rule of thumb for advanced skiers is middle of forehead.  If you've only been skiing for 2 years you might want to go a little shorter than that.  Of course, if you are skill growing (you didn't give an age) you might want to go a little longer to grow into them.  The best thing you could do is actually go to a shop, and look at all the different sizes, even if they don't have your specific ski.  Look at anything similar, talk to the people at the shop, and have them figure out what is best for you.