The speakers are in perfect condition, they sound great, the bass on these speakers is pretty much unbeatable. These speakers are highly recommended if you are a serious gamer. They are THX certified. The sound on these speakers is unbelievable. Its just awesome listening to rock music, watching star wars or playing COD (or Left 4 Dead). Just do a quick search on Google for Logitech Z-5500 and you will see many reviews about them.
I dont think you can buy these in stores anymore (if you can, it would be priced above 600!)
The speakers have a multitude of inputs; Direct input from the computer, SPDIF digital input, Coaxial, line in. I have the remote for these speakers as well. I have been able to connect my MacBook to these speakers and get full sound from them. There is a cable which allows you to output Digital music from your MacBook to these speakers using SPDIF.
You can even use them as home theatre speakers. My last set up, I had them connected to my PS3 using the Optical output. It is awesome watching Blu Ray movies on these speakers!
PM me if you are interested. Priced at $480 or new offer.