Hi, I'm rather a novice at this, so you'll have to excuse me... I currently have a Toshiba SD-100E DVD player connected to a Sony SA-VA55 Doly Surround active speaker system. I'm now replacing the SD-100E with an SD-510E and I'm thinking of replacing the speaker system with a new set up. I'm looking for advice on what would be a good replacement for the SA-VA55. The great thing about that system is that the rear satellite speakers are infrared, so there's no need to have cables running half way round the room. I would much prefer that whatever I replace it with can do the same. I want something that copes with THX, DTS and Dolby Digital. I guess as well as an amp, I need new speakers as the SA-VA55s have an amp inside them which I won't be able to bypass. I don't want to spend a massive amount of money either. TIA!