Soundbar's

Hi

Has anybody got any experience with a one box speaker solution. I'm not allowed a 5:1 speaker setup, so am leaning towards the Yamaha soundbar range, i believe they have just released some new versions. Has anybody had experience with them, are they good or rubbish, am looking at the yamaha hty-750 or the ysp-500 (will be paired with a samsung 32" lcd ). Will What Hifi be doing a review any time in the near future. Any comments would be appreciated. 

Steve