Ladies, I need help. I've decided that I want to buy a tote but have gotten so confused with the varying styles! I want: structured bag (GST? Medallion?) as large as I can get (how large do they come?) shoulder strap brown, beige or white (gold h/w/?) Would someone give me details on sizes and prices --with all these increases I can't keep up --? I'm off to Vegas this weekend and thought I'd stop in the boutiques and see what's available. Thanks for your help!