If this should be posted in the Mechanics forum let me know, but this seems to be about "bike building" and there isn't a subforum for that...

Anyway, I took a wheel-building class last fall and have this spiffy set of brand-new 700c wheels, but now I need a frame to start building N+1. I was originally looking for a used frame, but I finally got the Lightning Stealth recumbent sold last weekend so the bike cookie jar has enough in it that I can consider buying a new frame that fits, rather than trying to find something used that might just be "close".

These are the goals I have for this bike:

• A road bike slightly more robust than my Specialized, suitable for touring/commuting - Steel/Alloy
• I'd like something having a more "classic" or vintage geometry with a horizontal top tube
• I'm flexible on the componentry, so a frame that supports stem- or downtube-mounted shifters is ok, but brifters are cool too

Beyond that, I'm just looking for something that fits, and I figure I can use the geometry (seat tube and top tube lengths) on my Specialized as a guide.

I've poked around a bit on some sites offering frames and frame sets, but it seems there are subtleties in selecting a frame that I'm completely unfamiliar with, so any advice, or reference to any resources for doing a little self-education would be most appreciated.

Thanks!