I vote for the RCBS ChargeMaster if you want a powder dispenser. It and the Lyman, I believe, can be programmed to really dispense a specific charge very fast. As it comes, it is more than fast enough and, when it overshoots by 0.1gn, you can either accept that (as that is well within the tolerance you will get with any volumetric measure) or, as I do, touch the powder with your finger and pick up that 0.1gn of excess powder.
For a digital balance, any unit that costs more than $50 will be more than adequate. I like the Lyman 1000 XP.
Powder Measure? The Lee Pro Auto-Disk is all that 99% of pistol reloaders need. The Hornady is excellent, particularly as a bench-mounted unit and is very good as a case-activated unit.
The Dillon is very good for a progressive press, but it will leak with some powders, does not handle stick powders well, and takes longer to adjust and settle down. However, any of them are, again, more than adequate for most users.