There's one basic thing that will guide the kind of bike you build up - will you park it outside? People who use bike to just commute to work and have secure storage can build up a nicer bike like a crosscheck or Jake the Snake. Since you're trying go car free, I'm guessing you'll need to park it outside while shopping etc.
The other aspect is being able to easily see traffic. Flatbar road bikes and mtb's give you a more upright position than drop bars, and hence allow you to more easily watch the road.
I bought an old 1990 steel mtb (if you do a seach on my user name you can find the pic) from the buy n sell and it's worked great for commuting. I use cheap panniers(I'm not excactly hauling 40lbs around on an expedition) on a rear rack. I can easily take panniers into store with me.
Older mtb's are perfect for this application and you see them everywhere on the commuter lanes. They often have longer chainstays which are perfect for heel clearance on the panniers. Look for one with fender and/or rack mount eyelets to make your life easier. Look for rigid forkst too - again, keep the thieves away and requires less maintenance.
Hope this helps!
Mike
The other aspect is being able to easily see traffic. Flatbar road bikes and mtb's give you a more upright position than drop bars, and hence allow you to more easily watch the road.
I bought an old 1990 steel mtb (if you do a seach on my user name you can find the pic) from the buy n sell and it's worked great for commuting. I use cheap panniers(I'm not excactly hauling 40lbs around on an expedition) on a rear rack. I can easily take panniers into store with me.
Older mtb's are perfect for this application and you see them everywhere on the commuter lanes. They often have longer chainstays which are perfect for heel clearance on the panniers. Look for one with fender and/or rack mount eyelets to make your life easier. Look for rigid forkst too - again, keep the thieves away and requires less maintenance.
Hope this helps!
Mike