I carry two DriEaz Ace dryers (the axial ones). They're really powerful, not quite the thump of a snail type but that's good because they don't blow pictures off walls! They spread theair out well and are great for both carpets and suites.
Just like you Shaun I will use them on almost every job and find even a 10 minute blast makes the world of difference.
I think a lot of people consider an airmover to be a faff and adds time to the job, but it doesn't have to be at all, you just need to adapt it in to your routine. When doing carpets I take the airmover to the first room and stick it on the first bit of clean carpet... then for the rest of the job it just gets shifted a couple of times as I go round.
At the end of the job, by the time everything's packed up and you switch the airmovers off you've got a big chunk of the carpets touch dry.