In reply to The Norris:
Edge and Wax has some great deals on at the moment, I just picked up a set of Atomic Alibi 2013's with Marker Jester bindings for £435. To put this into perspective, the skis retailed at £450 and the bindings at £300. They've still got some in stock but only the 187's so you'd have to be tall - it also depends what type of ski you want, as I knew I wanted all mountain twin tip rockered skis that would be great on piste and powder alike. Your preference may be considerably different.
I picked up my new boots from Snow and Rock, I got the Tecnica Demon 130's for £189 (bargaintastic!) but again, this is a very personal choice, as I wanted a stiff lightweight boot for freestyle and off piste skiing. I would say buy skis online if you know your preferred size, but boots need to be bought and fitted in a shop, so that you get proper measurements and make sure they are good and snug.