looking for interconnect under 200 dollars

Kimber Hero

Used is best deal but hard to give recommendations as it is so fluid. Recently saw a pair of Van den Hul the First Ultimate for $200. It is one of the best available at any price. Kimbers are always good but many brands vary and most expensive are not always the best. Check this link:
http://www.spearitsound.com/home.htm, they are closing out some Siltech, which are excellent cables.

Signal Cable Silver Resolution is hard to beat in that price range.

(http://www.audioreview.com/cat/cables/interconnect-cables/kimber-kable/hero/PRD_116466_5827crx.aspx) (http://www.soundstage.com/upton07.htm) (http://www.hometheaterhifi.com/volume_5_1/kimberhero.html) (http://www.polkaudio.com/forums/showthread.php?t=39679) They were the first Kimber product that I'd personally tried. They performed so well that I progressed through the rest of the kimber lineup to my present Kimber KS-1130 usage.

Cables aren't going to create a

nice soundstage with tight bass and decent midrange

Speakers, amp, preamp, and source create this. Anyone who tells you that cables will magically transform your system is smoking crack. I haven't heard any *dramatic* differences with cables. Just get something decent, but don't obsess over them. Kimber, Siltech, Van den Hul, Signal, Alpha Goertz, Cardas.. they're all good.