I guess if you really wanted to obtain a good bike via bike thievery you would just go around with Park cable cutters and an allen wrench. Steal a bunch of handlebars with expensive shifters and levers on them(probably 30 seconds of effort per bike), sell the bars and shifters on eBay and then go to your LBS and buy whatever you wanted. Plus you would have enough handlebar tape and grips to last a lifetime;-)