First big baby purchase

So I've been so excited for this baby since day one, I just want to get stuff and get the room ready and just get him here!!  Even before I was pregnant I thought I'd do cloth diapers, I think from the Philippines I thought this would be a great idea!  I like it for a couple reason, mainly, for the money we could save.  Here my research average baby goes though 8-10 diapers a day (less as they get older)  but a pack of 120 diapers costs about 20 dollars at wal-mart we're looking at 40 to 50 dollars a month in diapers.  Say they're in diapers til 2(most kids are closer to 3).  $600 a year and $1200 for 2.  This is a rounded number!  not to mention 2, 3, 4 plus kids!!!   
Well cloth diapers will cost me about $250 for everything that I need for the baby's life plus, if you take care of them, 2, 3, and 4 kids!!!  I figure it's worth a shot, I think what's a couple loads more or Landry?   So I bought some cloth diapers off the Internet and they got here last night!! I'm so excited for them!  I'm sure we'll have days when a throw away diaper will be great, and I'll keep some around, but this is what I'm going to do and try at least for 2 or 3 months to make my money back!!
I'm not a super greeny green person but I do know this is a lot better for our environment so it can't hurt! Marcus isn't totally sold yet but I'll do 90% of the diapers so I think I get to make this decision!!