I'll admit I'm jealous. I adore mine, and am starting to seriously look for a second, having come to the realization that I'm going to end up paying somewhere between $250-450.00 for the next frame and fork.

Best advice I can give you is to remember that, no matter how you've found it, you've got a thoroughbred there. Take the time and money to gather together something that works well together, some gruppo that's going to let you ignore the components and just revel in the frameset and wheels. I'm entranced with 7400 Dura Ace. Having used 600 Tri-Color on another bike (frameset later sold, gruppo is on the shelf waiting for the next build) I consider that the low-budget alternative to the frame. Sante', if you can find it, is a wondrous combination of Rossin over-the-top style and functionality.

Of course, being Italian, going Campagnolo is usually considered the first (to some fools, only) alternative. Assuming you want to build the bike period correct, Campagnolo may be you serious last choice. The glory years of Rossin seemed to match the nadir of Campagnolo. The Nuevo Record bits you've already got are probably a bit better than what followed for five or so years. Just the same, if you're willing to do without that name, you can do a LOT better.