First off, I am agreeing with what Movieman is saying to you.
And to put forth my own input as well. I am not saying in any form or fashion that you are not a hard worker. However let me strongly advise you NOT TO QUIT YOUR JOB. Yes you can make a living doing this, and you have plenty of money saved up to last for a good long while to support yourself and this new business venture. I have seen people come in and do extremely well with less than what you have. However I have also seen people with even more money come in and lose everything within 6 months.
This business is unlike any others, most of it is a gamble, and you might not be buying any lockers, for a decent price, everytime you go out to auctions. The bigger your city, the better chances you have. But that is not always the case. And to make a living in this business will take time, it does not happen over night. (For the most part that is). You would have to learn the resell business inside and out. Build a contact list for inventory, and establish a relationship with these people. Also need to learn how to value things on the spot so you do not overspend on a unit. If you have the space, I would concentrate on lkrs full of furniture. Solid wood furniture that is. That seems to do better than anything else.
My suggestion to you is, wait till you have vacation from your job, during this time, try out the storage auction business. This way you can get your feet wet, and get a feel for this business before you quit your job. At least then you will know whether or not you will like it.
Real storage auction, IS NOT LIKE THE SHOWS, I REPEAT NOT LIKE THE SHOWS. They dont show all the hard work, or all the crappy units they buy before they get a good lkr. Keep these odds in mind, for every 20 lkrs you buy, expect 19 of them to be utter crap, especially in the beginning.
Good luck, and I hope to hear how things go.