I've owned quite a few cans and ended up really digging the sound of Denon headphones. With a pair of AHD-2000's at home, I wanted something just as fun at work. I've auditioned the Audio-Technica M50, Koss DJ-100, AKG 240S, AKG 44, and Triple.Fi Pro's connected to a uDAC for work. The DJ-100's were good, albeit a bit dark. The sibilance in the AKG's were too fatiguing and the AKG 44, though incredibly inexpensive with the Guitar Center deal under $20, lacked body. The M50's, though excellent at their price point, weren't as detailed as I liked. Triple.Fi's are great but I realized I wanted a pair of cans at work. Ultimately I wanted a fun, detailed pair of headphones under $100. 
 
I looked at picking up a pair of the 1100's, but after some research I decided that I wanted try the CAL! since they shared the same drivers as the Denon 1001's. They are just what I was looking for: sub $100 cans that were as fun as my D2000's. Next step: pair it with a Fiio E6.