I think you have made a great start, and for a budget system, you should be getting some V nice sound from your set-up.

Congratulations, it looks like your hooked, welcome to the infirmary of incurable terminal audio-upgraditis!

Welcome!

I think you have a great system set up!

In the realm of shopping, depending on your listening habits, it may be useful to consider a sub-woofer. That may give you more system enhancement than a power conditioner, at this point. A good sub can even improve the sound of the frequencies above its range by allowing your main speakers to perform without "worrying" about the extreme low end of their range. You may gain in terms of dynamics; and a good sub gives alot of the subtle room ambience that is associated with good imaging or the creation of a sense of space.

Whatever you decide is next, I hope we get to see your system grow in a way you find pleasing!