OP, it might also help to know what you want to use your bike for; exercise, riding fast, grocery getter, etc. The Centurion Ironman has an excellent reputation for quality. I know you might prefer the shifters on the stem, but in general that is a marker for an entry level and lower quality bike that may not be as rewarding to ride for longer distances.
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N = '96 Colnago C40, '04 Wilier Alpe D'Huez, '10 Colnago EPS, '85 Merckx Pro, '89 Merckx Century, '86 Tommasini Professional, '04 Teschner Aero FX Pro, '05 Alan Carbon Cross, '86 De Rosa Professional, '82 Colnago Super, '95 Gios Compact Pro, '95 Carrera Zeus, '84 Basso Gap, ‘89 Cinelli Supercorsa, ‘83 Bianchi Specialissima, ‘VO Randonneur, Ritchey Breakaway Steel, '84 Paletti Super Prestige, Heron Randonneur