winchester21: Use your old speakers- buy some more old heritage to go with them- the worlds biggest no - brainer
I'd have to agree with that. Get 4 more Heresies and a sub and you'll have a far, far, better 6.1 system than any HT-in-a-box setup. For 5.1 you'll need 3 more Heresies, but it's hard to find singles, so you might as well get a pair, so if you do 5.1 you'll have a spare.
It might be an idea to look for 1986 or later Heresy IIs with the square connector cup at the back, since they can be upgraded to Heresy III spec when your budget allows, so you could have 2009-spec Heresies at some point.
In my system, I'm using 1974 La Scalas (upgraded to 510 JubScala spec), a pair of 1992 Heresy IIs for surround, a 1989 Heresy II for rear surround and the other 1989 Heresy II (upgraded to Heresy III) for centre. The combo sounds great, and it's rounded off with a Paradigm 400-watt 10" sub.
One way to look at used Heritage speakers is that the sound value far exceeds the dollar value. They may sell for bargain prices, but they still sound nearly as good as the latest versions, which are fairly expensive speakers. New Heresy IIIs are around $1500 a pair, for example.