I was looking at these quite a while ago, but I decided on the logitech equivalent b/c there were a lot of heat/reliability complaints about the klipsch, plus klipsch is overpriced IMO. All that aside, it sounds like you've blown your amp (probably due to the heat issues often complained about).
If you want to get the absolute most of your money, I'd check to see if the satellites and subwoofer speakers still work by hooking them up directly to another amp. Once you have confirmed they still work, you can install a plate amp ($50ish or so at parts express, free shipping yay!) to power the sub, and grab a 5.1 home theater reciever to decode 5.1 and power your satellites.
Or if you're looking to grab something brand new of similar price and quality, you can sell me your old broken stuff so I have something to tinker with and grab the logitech z-5xxx series stuff
. I've owned the logitech z-5xxx (I can't remember specifically) for like four years? It's been quite a while since I've purchased my logitech system, and I must say that it is quite capable of rocking your face off for great movie surround, but not the best for audiophiles as it is quite bassy and a bit staticy when you turn the volume up.
Of course I joke. Good luck, hope some of my rambling has helped you to find a solution. I solemnly believe that my first suggestion will yield the best bang for the buck if you were already happy with your klipsch setup. But seriously don't throw that old stuff in the trash, I'm sure someone on here, like me, would find a good use for it
PS: oh ya, I forgot my logitech z-5xxx has a fuse in the back. Make sure that if your system has a fuse it's not blown, before you consider replacing your whole system