According to the Competitive Cyclist I should be riding a bike with a 51-52cm top tube (C-C) and seat tube (C-C) of 55-57cm. Such a bike would be longer in the seat tube then a traditional squared road/track bike (TT = ST) and quite the opposite of say current compact frames.

Obviously the seatpost can be simply raised for frames with the right TT length, or seats moved forward for frames with the right ST length but then the comfort/power from the fit may be compromised.

What do you guys think? At ~5' 7" I'm not particularly tall, maybe I have long legs and short arms or torso?

My current bike, a Pinarello Prince from 2002 has the following dimensions:
S-T (C-C) 51
T-T (C-C) 53
Setback 14.1
Seat Angle 74 deg 15 min
Head Angle 72 deg 30 min
Fork Rake 4.3

Here's the fit calc's inputs and outputs:

Measurements
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Inseam: 85
Trunk: 57
Forearm: 34
Arm: 61
Thigh: 61
Lower Leg: 54
Sternal Notch: 142
Total Body Height: 171

The Competitive Fit (cm)
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Seat tube range c-c: 55.1 - 55.6
Seat tube range c-t: 56.8 - 57.3
Top tube length: 51.2 - 51.6
Stem Length: 10.5 - 11.1
BB-Saddle Position: 72.8 - 74.8
Saddle-Handlebar: 49.8 - 50.4
Saddle Setback: 6.2 - 6.6

The Eddy Fit (cm)
-------------------------------------------
Seat tube range c-c: 56.3 - 56.8
Seat tube range c-t: 58.0 - 58.5
Top tube length: 51.2 - 51.6
Stem Length: 9.4 - 10.0
BB-Saddle Position: 72.0 - 74.0
Saddle-Handlebar: 50.6 - 51.2
Saddle Setback: 7.4 - 7.8