[brassbellend]

If budget is important then look at the Onkyo 506. Richer sounds have got a great offer on these at present.

ONKYO TXSR506-BLK at Richer Sounds - HI-FI Separates, Home Cinema, Speakers, MP3 DVD Portables, Plasma LCD, etc.

A wee bit further up the price scale you could look at the Sony STR-DG820 and the STR-DA2400

SONY STRDG820-BLK at Richer Sounds - HI-FI Separates, Home Cinema, Speakers, MP3 DVD Portables, Plasma LCD, etc.

SONY STRDA2400-BLK at Richer Sounds - HI-FI Separates, Home Cinema, Speakers, MP3 DVD Portables, Plasma LCD, etc.

I'm not sure if the two lower priced ones will decode every available HD audio codec but the 2400 will. All of these amps feature HDMI input which is exactly what your PS3 needs to do it justice. I'm assuming your TV has an HDMI input. You would also be advised to check your speaker ratings against the amps output. I'm sure they'll work but you could find that these amps put out a lot more power than your speakers are designed for. Its your call though.