With the changes to all the mod effects, I'd say that technical mods for weapons are the way to go, in almost all situations. -20% fire time translates to +25% dps (reload time excluded). Plus a shorter firing time means that enemies have less time to act after you fire - preventing double turns against your single one, and giving you an earlier chance to react to situational changes, such as new enemies coming into view.
For pistols, the bulk mod is worth considering since a large proportion of your time is spent reloading after getting the 4 basic pistol traits. The weapon reload mod (-40% reload time) in the old version was way better though.
Power mods are okay, but outshined by the buffed technical mods.
The +1 accuracy (agility mod) effect is as crappy as ever - but essential for Ammochain builds.