Flat surround speaker cable.

[morg2k2]

Hi guys,

I´ve moved to a new flat and need to replace the surround speakers cables, since they´re too small and a bit intrusive on the enviroment.
Since the cables can´t be passed through the wall (since the the flat is not prepared for it) i need a cable to connect to 2x Kef model 60S. So i thought maybe with some flat cable model. Since i´m not rich, i had QED Pearl model for the surrounds, and now i want a cable that at least can have the same eficiency.
I saw a few models from Ixos to Qed at reasonable prices, then i´ve checked some models from Merlin to Nordost.... and then i saw that the prices are quite high since, i need to pass about 30m of cable.
What do you guys recommend to buy , that i can replace and get at least the same eficiency of the cable i do have.

My AV system is like this:
Receiver: DENON 2802
Power Amp: Rotel RB-985
DVD: Pioneer DVR-433H
Main Speakers: KEF Q3
Central Speaker: KEF Q9C
Surround Speaker: KEF Model 60S
Subwoofer: REL Q100E
LCD TV: 30"

Thanks for your time,
Morg.