J.H.
Fitteds are probably going to be the best for a newborn. I really like Thirsties Fab Fitteds with a Thirsties cover. A lot of people like Kissaluvs fitteds for a newborn, but I think they're bulkier than the Thirsties. Any cloth diaper is going to be bulkier than a disposable, but I do agree that Bummis really isn't that great! Prefolds - if you want to do those, Green Mountain Diapers have the best prefolds. Thirsties covers are my favorite, no matter what type of fitted or prefold is underneath! Also, the thirsties covers tend to fit a bit big on my daughter - she's 10 months and still wearing a size small! So, I'd get a few extra smalls for your newborn.
Peppermint Baby Boutique in Richardson sells Thirsties Fab Fitteds and covers, as well as Bum Genius 3.0 pocket diapers, and some prefolds and even some flats. They can show you how to fold a prefold or a flat for the trimmest fit if you need. Also, babycenter.com has a great cloth diapering group with a lot of helpful people. If you need any other information, you can email me!