Speakers are the most important choice to make. With that said, please keep in mind that speakers might perform quite differently in different rooms and/or with different amplification. I would suggest choosing speakers that will perform appropriately in your given room, and with the amplification that appropriately suits that individual speaker in your room, not what you have on hand. Building a system with your current and potential budget, around your current receiver is bound to cause a needlessly frustrating bottle neck.
There has been a lot of conflicting advice given, welcome to the hobby!. None of it is really wrong. IMHO, your correct in deciding upon speakers first. As I've already suggested, I think that one should think in terms of speakers with amplification. Separates will offer you more choices and allow you to make changes easier as you get a better feel for what direction you might want to pursue in the future. If you choose quality used products, you can try them in your home, and keep them if you like them or sell them if you don't, for pretty much what you paid for them, with little penalty other than perhaps shipping costs. As such, while I respect the opposing position, I see little reason to hold off buying key components and upgrading secondary components as your budget allows. Why be without music and the learning experience in the mean time? The key is to buy gear that has stood the test of time and retains it's value. Needless to say, and though there might be some novelty exceptions, poor sounding gear doesn't usually make the list. That doesn't mean that you shouldn't take advantage of opportunities to listen to other systems. Just try to keep them in context of systems that will be at there best within your budget (now and into the realistic short term future), and your room.
There has been a lot of conflicting advice given, welcome to the hobby!. None of it is really wrong. IMHO, your correct in deciding upon speakers first. As I've already suggested, I think that one should think in terms of speakers with amplification. Separates will offer you more choices and allow you to make changes easier as you get a better feel for what direction you might want to pursue in the future. If you choose quality used products, you can try them in your home, and keep them if you like them or sell them if you don't, for pretty much what you paid for them, with little penalty other than perhaps shipping costs. As such, while I respect the opposing position, I see little reason to hold off buying key components and upgrading secondary components as your budget allows. Why be without music and the learning experience in the mean time? The key is to buy gear that has stood the test of time and retains it's value. Needless to say, and though there might be some novelty exceptions, poor sounding gear doesn't usually make the list. That doesn't mean that you shouldn't take advantage of opportunities to listen to other systems. Just try to keep them in context of systems that will be at there best within your budget (now and into the realistic short term future), and your room.