If you're on a budget, I strongly recommend a middle-of-the-range Yamaha reciever and the ever popular Paradigm Atom speakers (~$600 for center channel and four Atom monitors.) I really like these, both for music and HT. I can't help much for subwoofers, though from the numbers, Hsu looks like a very good option.
Another option for small rooms is the Behringer 2030P studio monitor. It has remarkably flat frequency response from 50hz to 16khz, and low distortion. And at $130/pair, they're very inexpensive. Guitar Center may have these out as demo models, though you may need to bring your own amplifier to power them, as they no longer carry studio amplifiers.
However, if you like the "Focal Sound", you cannot do better than the old KRK studio monitors. I'm not a big fan of the "Focal Sound", but I love my KRKs.
I am a big fan of Yamaha gear. It generally sounds quite good for the price, has a variety of useful inputs and features (just don't use the digital effects!), and most importantly, never ever breaks, including an ancient receiver I bought at a garage sale - and it's half again older than I am!