Here's a simple, all-purpose bag for that was designed for mobile, laptop-based DJs. We like it because it would also make a great daypack / commuter bag for someone that needs to have their computer with them but might want to pick up some records on their way home.
It's called the 365 DJ Pack and it comes to us from Mono. Here's a bit about it from their site:
Designed around laptop-based DJ setups, your gear is always right where you need it. The extra-padded integral sleeve secures up to a 17” laptop. The expandable record slot secures a small stack of vinyls. The main compartment features a center divider which can be removed to fit various controllers or even a portable mixer. Cables stay coiled. Deep side pockets fit a stack of gear, while the headphone pouch provides plush protection.
The bag was designed after working with some of today's most respected DJs to determine the right balance of style, flexibility, and comfort. Here we see ?uestlove, drummer for The Roots, carrying his Mono 365 DJ Pack on his way out of the studio.
It is available in both Black and Gray from Mono's website here for $189. It's a bit pricy for a bag but since it's versatile enough to be an everyday bag for the laptop user that is always looking around for new records, we're a fan.