I've used and still have both, but haven't used either in years. I've replaced Torq with SSL1 and Mixmeistaer with Abelton Live 8.
I'm running SSL1 on an old dual-core Windows XP laptop. (Which at the time was a $2,000 laptop but now is less powerful than a really cheap Walmart laptop.) It's actually more of an all-in-one than a laptop since the battery on it died several years ago.
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