What is your budget exactly?

Do you need and integrated amp or a power amp?

Try looking in Class B of Recommended Components in the October 2008 issue; it's right here online. That would be a good place to start.

Those speakers are fairly efficient and if you do not have a large listening space you can use a moderately powered integrated.
Cambridge Audio 340A
NAD C315BEE
Music Hall 25.2
Onkyo A-9555
Marantz PM5003
Rotel RA-1062
Jolida JD 1301A

The Parasound A23 might be one of the better power amps in that price range. Audio Advisor sells it for $950 US so I think that is in that range.

In that case you couldn't go wrong with a Rotel if you were buying new. That is what those speakers were designed and voiced with. Arcam is also a good match for the B&W 600 series in my experience. Of course you could do even better for that money second hand depending on how comfortable you are buying used. It would be tough recommending American brands because I wouldn't really know how much they cost over there because a straight dollar to Euro doesn't take tariffs, VAT, and other import costs (like distributor profit) intou account. But you might also want to check into Adcom amps too.

Many to listen to:
Rotel RB-1562
Arcam P38
NAD C272
Advance Acoustic MAA 406
Quad 99
Audiolab 8000M (2)
Exposure 3010S
Roksan Kandy L.III

The Rotel RB-1070 would be a good one to listen to. The Korato KTA 100 looks interesting. http://www.tnt-audio.com/ampli/korato_e.html

I thought NAD was distributed throughout Europe, but perhaps not where you live. The NAD C272 should be perfect for you, if you can get it. It lists for $800 US, but I have seen it for $499 at Audio Advisor online; I do not know if they ship to Europe.

On the other hand...Korato is local for you...have you looked at the Korato KVA 20 and KTA 100 ?? Check their website. I don't see any price information, but perhaps one of them would work for you. Local support is always good if there are problems.

P.S.- I just checked NAD and they show a Belgrade distributor:

4 AUDIO D.O.O. ********* www.4audio.rs/
CARLI CAPLINA 33
BELGRADE ************ TELEPHONE 381-11-276-6592

They seem to carry the NAD C272 power amp (150W) and the AUDIOLAB 8000P (100W), among others.

If they sound good with your other components and it's in your price range then they would be a good option. I've heard quite a few Musical Fidelity components and none of them have ever disappointed me for their asking price.