Joined: Aug 2004
Posts: 1,648
Likes: 0
From: nyc
Bikes: '06 Vanilla touring, '09 Vanilla cx, Zanconato cx, Moots Psychlo-X RSL prototype, Nagasawa track, Kalavinka track, Black Cat 29er, Cannondale Rize 2 26er, Serotta CRL Legend
In theory your optimal fit should be right about 58cm (34 * 2.54 to get cm, then *0.67 to get your framesize) so it should be close -- since you seem fairly 'leggy' it might work better for you to have the smaller seat tube as you'll also get a correspondingly shorter top tube, which (imho) is more important for fit.
-s