Thank you both for the welcoming.
About the K-5 it looks just the perfect fit for me.
My only worries about pulling the trigger on the amazon cart is that i fear they release a much better new one for the same price with more manual video. :P
And still i can't understand if an old A lense works just like any other new digital lenses (with the sole exception of the manual focus of course) or if it has some other limitation. Long story short, i want to manually change diafram and shutter speed (but sometimes i want to use diafram priority), without having to use the stop-down technique and having in the viewfinder all the information. Will I be able to do that with an A lense?