As far as Ridge Street is concerned, you should talk to Robert and tell him EXACTLY what you are trying to accomplish with the cables in your system.
He can taylor a cable for about any type you're looking for from highly anylitical, to the less focused, more musical type.
I have tried his Poeima's and a unnamed prototype. They are very good.
I have just bought the Pulsars and am breaking them in. They do a lot of nice things including having a very wide soundstage.
What I have found with cables is that they are VERY system dependant and listener dependant.
If I were you, I would try as many cables in your price range as possible and return the ones that don't work out.
I have recently tried Bolder Summits (and HAD to buy them) and the Cryotweaks Silver Ref II's.
They are all very very good and I recommend you try them as well.
All of the above were single ended.....