Blindjim's advice is good, for somebody who has an idea of what is out there and is comfortable making a deal sight unseen for products they may have never heard. I agree with Rleff and Stanwal that you really need to do some "ears-on" research to get an idea of how current products in the marketplace compare to what you already have. I strongly suggest going out and doing some research before you make a major investment in this or any other Internet market, unless you relish trial and error by mail and bank account.
Another point - I took a twenty year hiatus from the hi fi marketplace, and when I returned, the most important thing I have learned from sites like this is the criticality (word?) of physical set up and your listening room are as important as the equipment itself. You may be able to increase your enjoyment of your current system by 100% by setting your speakers away from the back wall and adjusting the separation optimally to your listening position. Also, isolating some of your gear with even crude measures like heavy hard wood cutting boards and blocks, blutack, sorbothane dots, spikes, etc. can have surprisingly positive effects on system performance.
The second thing is that better wires often do sound better - again, just upgrading to well designed but inexpensive interconnects and speaker cables from Internet providers like Signal Cable and Blue Jeans Cables can add to your overall enjoyment and the performance of your current or new systems. When you go listen in the showroom, be sure to look behind the gear on demo to see how and with what it is connected together. Sometimes you can get gear home and it doesn't sound like it did in the store - because in part it does not have $4000 of cabling hooking it together. For your demo, make sure the sales person sets it up with wiring that is also within your budget.
Good luck. If you look at this as an adventure, it can be fun and highly educational for your ears, and perhaps actually save you some money and time in the end.
Another point - I took a twenty year hiatus from the hi fi marketplace, and when I returned, the most important thing I have learned from sites like this is the criticality (word?) of physical set up and your listening room are as important as the equipment itself. You may be able to increase your enjoyment of your current system by 100% by setting your speakers away from the back wall and adjusting the separation optimally to your listening position. Also, isolating some of your gear with even crude measures like heavy hard wood cutting boards and blocks, blutack, sorbothane dots, spikes, etc. can have surprisingly positive effects on system performance.
The second thing is that better wires often do sound better - again, just upgrading to well designed but inexpensive interconnects and speaker cables from Internet providers like Signal Cable and Blue Jeans Cables can add to your overall enjoyment and the performance of your current or new systems. When you go listen in the showroom, be sure to look behind the gear on demo to see how and with what it is connected together. Sometimes you can get gear home and it doesn't sound like it did in the store - because in part it does not have $4000 of cabling hooking it together. For your demo, make sure the sales person sets it up with wiring that is also within your budget.
Good luck. If you look at this as an adventure, it can be fun and highly educational for your ears, and perhaps actually save you some money and time in the end.