First off, Welcome! I came from racing into freeride, you've got the advantage because you have good techniques instilled in you.
Take a look at a few magazines, buyers guides should be out! And backcountry.com does a great gear review. Read the descriptions, identify your level, and go with the best!
Also racing may have changed since I last did it and I was purely alpine slalom no GS, but my skis were short, like 142. I ride 171 coming up for this year. Longer skis are going to help in variable terrain. Other ladies can back me up or maybe make a different suggestion on that one but every time i buy skis, I up the length now. Got gifted a pair of pow skis last year that are 163 and they just seem crazy short to me now.