Well I'm completely new to biking and wanted a little help in knowing things I should be on the look out for when shopping for used bikes. Besides my new job of bike delivery my last esperience was 8 years ago when my bike was my means of transportation. I'm going into the local pawn shop tomorrow to find a used bike and since I've been out of the loop for a while I'm sure technology has advacned alot in terms of bikes so a little help would be great like what are good models for commuting about (10min by car) guessing about 6-7miles one way. After much research today I found the Kona Dew Deluxe as my ideal bike, but chances are that wont be there so what should I look for, materials, brakes wheels, gears, models, and so on?

Thanks in advance
Kevin