Save your money and put it to use on some good coaching. It will carry you farther through the course than just buying a new ski will!!!!!!
I don't know where you're from but I'm sure there must be a ski school within reasonable distance of you?
Someone once told me Marcus Brown ski'd the course on a 2x4 with no bindings - and I believe it after watching those guys and how good they really are!
I have spend some time with Trent Finlayson while I worked in Texas and he helped me take my skiing to another level.

Good luck and keep working - it will come!