Just an update for those in the same boat as me. Zu auctions a Xaus phono cable on eBay every couple weeks, and starts the auction at $150. I ended up being the only bidder for mine, so got it at $150 plus $10 shipping. They'll terminate it however you want - RCAs, XLR or DIN. The construction is beautiful. I have no idea how it compares to other phono cables because I haven't heard any, but it's a vast improvement over the generic interconnect I was using.
If you can catch the right auction, it's a great way to get a brand new phono cable, with warranty, for a very reasonable price.