Larry
You might want to look in the BAC "Redecorating and Upgrade" forum under TV and Kitchen updates to find my solution. My Bose system was out and I'm not a Bose fan anyway, so I decided to replace the system with a Yamaha home AV receiver. I did this in conjunction with an HDTV upgrade, so it afforded me the extra space to place a receiver behind the TV. As a bit of an audiophile anyway, I can't tell you how impressive this new system is working out.
I kept the Bose satellite speakers, but trashed everything else. I installed a Yamaha RXV671 receiver, REL subwoofer, new Bluray player, Dish HD Satellite tuner (to replace DirecTV with my Tracstar SV360), new network router and a few other items to make everything work and play together nicely.
This weekend I am completing a dual cooling fan addition to the overhead cabinet (will post pictures soon) to keep all the gear running cooler.
In any case, you can easily find a home receiver for a couple of hundred dollars, rewire and add a nice sub for a total cost of 300-400, if you can find a place to put the receiver....
Jim