I have two in cloth diapers. I wasn't originally for it, but I've come around. The cost savings are great, it really doesn't take that much more time, and I never have to worry about running out of diapers. My original objection was that it'd be "gross", but kids are gross just in general. In comparing notes with my disposable diapering friends, I don't think I have to deal with any more grossness than they do. Leaks haven't been a problem since we figured out how to make the adjustable diaper covers fit. Overnights are easier with cloth than disposables; I just add an extra diaper or pad to the cover if I think it's likely to be an issue.
My advice is very similar to what others have said. Buy just a few at first and see how it goes. Buy used and buy a few different types so you can see what you want. I'm heavily biased towards snaps as velcro takes more attention in the wash, and I like BumGenius and Charlie Banana. Charlie Banana fit my baby as soon as he got home from the hospital; birth weight 7lbs, 15oz. I folded the top over for a week or so until the cord stump dropped off. They still fit both kids (30lbs, 36in/22 lbs, 24in).
On the subject of time: cloth requires washing and drying, for me that's about 20 min of labor every two days (with a stash of 30 diapers and two kids). But remember that disposables require work too: clipping coupons, lugging boxes, unpacking and storing. Maybe it's not as much, but it deserves some consideration.
I know you said that the environmental aspect isn't a big deal for you. It wasn't for me, either, until I had some things pointed out to me. Like, disposables for one baby adds up to over ONE THOUSAND POUNDS of garbage per year. Disposable diapers make up 30% of non-biodegradable waste, and we don't actually know how long it'll take them to decompose. (250-500 years seems to be the best guess.)