gammy

Hi - I will be 60 in September and plan to buy a bike. I am looking at hybrids. I will be using it to ride a paved surface in our park (with some big hills) and hope to use it for neigborhood riding as well. On occassion will be riding at Cape Cod on paved or hard pack bike trails. I have been smitten by the Bianchi - probably because I like their odd green - but want a light bike that is comfortable to ride - sort woman 5' 2" with pretty short legs. I hate hills but will be having to bike them! I remember big hills of childhood on my brother's clunky bike in the 50's. I know I don't want a racing posture - too hard on my back. I would appreciate advice.
I like the look of the Bianchi Milano and Bianchi Boardwalk. (And I admit I'm one of those oddies who likes 'Celeste.')Does anyone have experience with these? I plan to go sitting and choosing this weekend - help! Also saddles - comfy. And what are the major questions I should ask? I hear negatives about R & A in Brooklyn - that they are snooty with us non - racers. Hear better stuff about Bay Ridge on 3rd Avenue near 90th Street - anyone with thoughts about Brooklyn, NY stores? I live in Park Slope. Thanks