I'm not sure on the price, but where I live Raleighs are quite reasonably priced, and they have some bikes that sound like what you are looking for.

The Detour, Cameo, and Spirit. They won't set any speed records, but would be nice for around town.

Raleigh Bicycles - Cameo
Raleigh Bicycles - Spirit
Raleigh Bicycles - Detour (Women's)