yah for the boots - with your own boots you really don't care about hire skis - well at least I don't mind that I've poved out and have hire skis

bushmanpat is right - wear the type of socks that you're planning on wearing with the boots on the slope when you get them fitted. I used to walk around the house in my boots all the time to "fit" them properly - my calves are now too big and I can't wear them any more ($1,000 worth of custom made boot when I was 19)