from the parts mix (mostly second tier Ofmega stuff, looks like) the first bike is probably a Trofeo, or whatever is equivalent in Europe. The celeste color was reserved for made in Italy bikes, and I'm gonna be suprised if that bottom bracket isn't really a 70. I rode a Trofeo for a couple of years...it was a good solid, comfortable race bike, not a lightweight. It would make a good stage racer, or fast randonneur. The celeste bikes, especially, still seem to be gaining in value. Based solely on color, I'd guess that the second could be a Limited (a Japanese Bianchi). All things being equal (and they're not) the Limited is probably a better bike, but not nearly so good an investment. Ask about the "Made in Italy" sticker on the second one...