I encourage you to answer a couple of questions regarding preference before you lay your money down on any speaker. Do you prefer a variety of experiences or are you content with one type of experience? Do you have a particular type of speaker design you enjoy more than others (i.e. Horn, panel, dynamic, omnidirectional, line source, or a hybrid design etc., or are you open to any/all types of speakers? As expected, you will encounter a lot of enthusiastic recommendations here among the responses. However, answering these questions may well determine the framework of your selection.
Try your best to get to an audio show. With your means to build a system you should be hearing some of the premium speakers. It is often possible at a show to buy the display set for a significant discount. Also, it is usually possible to work out logistics of shipping.