How good is the DSS compared to the mixamp? sorry didn't mean to hijack this thread just curious.

  "It's true" - BSB

What's the Modmic for? are you into games or just need something for Voip? Also, which music genres you like the most?

I'd keep the Sennhs for gaming sessions and buy a headphone for music strictly.

Welcome to head-fi   I notice you are into gaming, how important is positional accuracy for you?

I will be out of town for that weekend, i'll try to make it on time. Need to demo some fresh gear

  No doubt

They look pretty similar. hmmm   There's probably not much difference

HE-400 seems like a good option. 

Thanks for the impressions.    I Know the Dexa opamps, they look promising. Wondering if you have any experience with the Burson's? I cannot find any info about their new opamps. :( http://www.bursonaudio.com/creations/discrete-opamp/

  That will be really interesting if they ever do that. Been looking for my next upgrade and Vioelectric makes nice gear. 

Carlos Santana, most of his songs  

Use adobe audition. It's not hard to do it, just need to follow the steps mentioned on this guide. 

  Enigma

HD558 and HD600 (out of OP's price range) are pretty comfy.