I have one suit right now, and I would like to get more, but I'm too nervous about getting something that doesn't fit. I don't think I have any clothes that properly fit me. I'm considering ordering one off of moderntailor.com, but I question if I would be better off getting something in a store. My current suit is black with light pinstripes, and I would like to get a light gray one like http://www.express.com/glenplaid-wool-blend-photographer-suit-jacket-43667-697/index.pro (I suspect this isn't good quality though).
Does ModernTailor seem like a good choice?
How should the arms of a suit jacket look when you raise them in the air? I've seen examples in the fit forum of improper ones, but I haven't seen an example of a properly fitted one.