how about 5.1 speaker for ps3 and movie, its gonna be put at my living room. Mid-range price. What models should i shortlist first?

My budget is around 500 but i'm thinking of buying second hand speaker coz it's cheaper. i think it's safe to list down speakers below rm750 as the second hand one will surely be below 500 then.

the power of ebay . I cant found both edifier r501 and altec fx5021 on ebay though, so i'll have to get them off my list. I did found 2 logitech 5.1 speakers, logitech g51 and logitech z680. both of them are within my price range.

Anyone have any experience with these 2 speakers? I personally liked the look of g51 but z680 supports dts and dolby and i dont think g51 does that. Another thing is i can get g51 for less than 400 but i may have to fork out 500-600 for z680. just need to know if the price will be justified by sound quality. hmmm..pening

This post has been edited by jie20022002: Jun 16 2008, 12:56 AM