Warm, fullbodied, smooth, and transparent

Of the few that I own or have tried the Harmonic Technology Truth Link IC's easily are the warmest and most full bodied and have the most presence in the lower range. I wouldn't exactly call them smooth or rolled off because the highs are still there. There must be hundreds or more out there but these could be one to try to get your hands on for a demo.

Second the Cardas suggestion. Cross or Golden Cross depending on budget.

All right Guys, keep them coming.

Straley Reality Cables come to mind as well. Can't recommend highly enough.

Gabriel Gold has a beautiful tone (with a slight golden glow) and terrific detail/soundstage/imaging