Any balanced one end/rca the other interconnects?

Better to just buy Neutrik adapters and use your favorite cable.
The connection will be as good as right on your gear.
They come in any combination you want. See link.

http://www.markertek.com/Product.asp?baseItem=NA2FPMM&cat=CABLESCONN&subcat=AUDIOADAPT&prodClass=XPAD&mfg=Neutrik+USA&search=0&off=
.

Audioquest made me a pair, specify the grade of wire you want.

Just about any custom cable manufacturer will produce these for you. I know 'Signal Cable' will make them to your requested length in either copper or silver, both at very reasonable prices.

Sugerbrie has the right idea. I use these and they're fine. Dave

Funny you should ask.

I just sent a pair of 2.5m balanced Kimber Heroes to the factory to be cut in half and terminated with RCAs on one end so that I'd get the two pair of RCA/XLR cables I need for my set up.

Now I don't need to mess with adapters and the cost was comparable. ($110 for this service)