For speakers I'd suggest taking a look at the Energy Take 5, probably the most popular entry level system right now. MSRP is $800, but you can order them for around $550 or less via mailorder/internet. Go to
[Link: energy-speakers.com] for info.
For a receiver I'd suggest either a Denon 2700 or Yamaha 795.
Definately use
http://www.audioreview.com to see people's opinions on equipment and where to find them.