I'm in agreement with what has been repeated above... go to a local bike shop and let them know what you're planning to use the bike for and your price range. Speaking to the local bike co-op or club should also get you good info. Whatever bike you choose, make sure that it has mounting point for front and/or rear racks as you may want to add bags to carry items for grocery shopping, and other errands.

One more side note... Electra Bicycle Company was acquired by Trek earlier this year and will now be sold and serviced through Trek dealers.