My telly's speakers are rubbish so I'm thinking about putting a 5.1 system in my living room just to do the audio from $ky. The only mode I would use is Prologic II. What is the cheapest amp with prologic II? (It doesn't need to have Dolby Digital or DTS!). If there isn't an amp for £100 or less I won't bother. I can imagine lots of people in my position. Is there an amp to satisfy the niche?