We're just using prefolds and covers and it's really been great...he was in the orange edge newborn size until probably about 6 1/2 weeks, then we switched to the yellow edge ones, which are still a little big at 8 1/2 weeks, but are working out pretty well (he's about 11 1/2 lbs at this point).
Our covers (I think we have 8 or 9 total in small) are all from Blueberry and Swaddlebees, my favorites are the minky wraps and the merino wool covers, which we use at night. We also have a few of their other covers, and even when DS has had a total blow out from the diaper, all of the covers have always contained it. I think there's been one where a little escaped up his back, but it was a ridiculous amount of poo to have come out of such a tiny being, and I think I could have had the cover on tighter...anyways, I can't recommend their covers enough
We also have 5 of their AIO one sizes for babysitting, since I generally can't part with DS for long these have only been used once when we went to the AFC championship game, but they worked out well, esp considering that the friend watching him is completely critical of all of my granola tendencies, including CDing