I agree with those who say good boots make all the difference! I too started with leather lace ups and remember my first pair of red leather Nordicas with buckles! (Memory lane...) But boot technology has changed since then, and it has changed a lot in the past decade, especially for women's boots. If you are happy with what you have now and they are comfortable and responsive to your skiing style, no point in spending money on boots until you are ready for a new pair - and then prepare to be amazed at how boot fittings have changed!
About skis - I agree with the advice of going to the demo department and trying different skis until you find the one that makes you smile. I find some skis force you into a particular turning radius, which some people may like, and others don't. The great thing about demo-ing, is that you can change your skis multiple times a day until you find the right one. I was in the market for new all mountain skis last year, and demo'd a bunch of different skis in Colorado including Vantages, Black Pearls, Sambas, Santa Ana's, Kenjas, and FullLuvits. (I also like Kastle, but didn't feel like spending the $$$$, and wanted something lighter to help my poor old knees). My reaction to the various skis ranged from 'these are nice' to 'get these off my feet now' to 'Wow these are FUN!' (the Fulluvits). I then skiied the Fulluvits for a few days, and was lucky enough to have all sorts of different conditions. Also, now that I am (ahem) older, I like to cruise more, but still want to ski bumps or steep and deep, so need a ski that will let me ski a variety of different styles and terrains. Although I loved the Fulluvits, after a couple of days, I realised that the shorter length, for me, was not fast enough when I wanted to ski more aggressively, so I went with a longer ski and couldn't be happier. Everyone has their own skiing style and you need to find a ski and ski length which works for you.