Furutech FP-900 http://bit.ly/1OiNet7
These 24k gold plated RCA jacks are a bit overpriced outside of Japan, but I recommend the design. It's made so it's very convenient and reliable to screw tight to the chassis, without slipping or rotating.
The main downside is the chassis clearance holes are 12 mm rather than the standard 9.3 mm. So once you go with these there's no going back.