Hello

I will be moving to Long Island for a short time (4 months) from Sweden for an internship. I hope to commute to work (about 6 miles, so it's short), but I will need a bike.

Where is the best place to buy a used bike? I would like something cheap, like a simple single speed, or an older racer. I'm fairly confident in being able to check the condition of a bike, but I could spend a little more money to buy a used bike from a good lbs, just to be sure that everything is checked up, since I wont have all my usual tools with me.

Also, will I need to buy studded tires? I will be working until the beginning of november. I'm not sure how the weather is in Long Island that time of year.

Thanks for any help