I would definately not suggest Mackies if you want to hear into your mix, just A/B them with a pair of Adams or Focals and you will see that even the attack transients on kicks are hard to really see into with Mackie's.
I have been looking into monitors aswell and have come across Focal CMS 65's, just check out their website and look at the positive reveiws. On listening to them they are very detailed with enough bass extension.
I also considered Dynaudio BM6As and found through listening to them and reading forums that they emphasis the low and top end too much and forget about the mid range where a lot of stuff goes on in electronic music. They have also been around for too long.
Adams are good, I think the A7s are a bit bright and lacking in bass extension though. If your budget could extend to the P22a's they have loadssss of bass.
Seriously check out the Focals CMS 65's, you won't be disappointed.
http://www.focalprofessional.com/en/cms-line/cms-65.php
See "Press" section for reviews.
Focal make some of the highest end domestic speaker systems around.