Hi there, My first post so go gentle I've been offered a Sherwood R-925 from a mate for £120, I know this is as a bargain but the amps 4 years old now. Is this a good first amp to enter the DD/DTS world with? I'm currently only using Dolby Pro Logic on my TV so it's gonna be a big step whatever. Anything I should look out for when checking it out??? Thanks Thief.