1- I actually love a brand of fitted diapers made locally with Bummis covers. You should check out any local Green or crafting stores to see if you have local WAHM who make cloth diapers - they may be cheaper and easier to buy. Otherwise, I have always really liked BumGenius. My son is very tall and is now outgrowing them, and he wears FuzziBunz regularly. You can buy both on amazon.com
2- I'm not sure you can calculate savings in days or months but more like years. You will spend a lot more on cloth upfront, but then (especially if you buy one-size-fits-all), you won't have to spend money again. The savings are even greater if you use the same diapers for second children! The diapers I buy cost between $15-$25 a diaper, and I go through at least 8 a day, so I probably need to own at least 18 diapers, maybe more. You do have to change cloth diapers more frequently than disposables. However, a pack of disposables costs about $14 and will last a couple of weeks. I think if you do the math, I think you'll find that it will take about 6-8 months before you break even, and everything after that is savings. This assumes that you are a full-time cloth diaperer. I know lots of people who cloth diaper during the day but not at night, or cloth diaper when home but not when going out, etc. This will mitigate the savings, although then you wouldn't have to buy as many cloth, so you'll have to make your own decisions about your approach.
3 - Not really. It's a little messier than disposables, but anyone with a baby gets used to dealing with poop and pee. I keep a covered trash can in the nursery for cloth diapers and toss them in when soiled. I also have a bucket of water for the poopy diapers. Poopy diapers have the solids dumped in the toilet and then soaked in the bucket (we have low-flow toilets, so washing them in the toilet as is traditionally done just isn't possible for us). I wash diapers about every 2-3 days.
4- My husband prefers the cloth diapers because he is very much an environmentalist and he feels good using them. However, he wouldn't touch the prefold diapers. He was intimidated by them. Now that the diapers we use are very easy, either pocketed or fitted with covers, he is completely fine with it. Of course, he isn't home during the day, so I still change the majority of the diapers. ^_~
Good luck!