Yes.

As I stated previously, I'm currently assembling a Specialized HotRock 24, specifically aimed for commuting. I bought my fenders through Amazon - these were the more expensive, lightweight aluminum, but the cheaper, heavier steel 24" fenders can be purchased at a variety of outlets for between $20-30 (often cheaper). As for racks, many brands are universal and fit - some requiring more 'tweaking' than others and not a problem to install at most any LBS.