Any suggestions for steel frames with shorter top tubes? Eyelets on the dropouts a plus.

As I get older my hands get numb more easily and my neck gets sore more easily on longer rides. Just for the heck of it I tried out the Competive Cyclist and Leonard Zinn fit calculators. The "Eddy Fit" at CC and the Zinn calculators both suggest that I could use a frame with a seat tube (c to c) of about 59cm and a top tube of about 56 to 57 cm. This got me thinking it would be a worthwhile experiment to try out a shorter frame if I can find one. Since this is only an experiment at this point I don't need anything too fancy or too expensive. (maybe $250 tops for frame and fork)

I'd be willing to go as tall as 60cm if I could keep the top tube between 56 and 57.

Brent