Migrating iphone application data

I have an iphone 3G, currently syncing to a desktop XP machine, which I'd like to migrate to syncing with my new MacBook Pro.

I already copied all my music and video to my new macbook. External hard drives work just fine, thank you very much.

I am not terribly worried about my contacts and calendar. (a) They're still on my PC if they get synced into oblivion, and (b) I'm given to understand that the synchronization for these is two way.

I'm not even that worried about my iphone applications. I have a lot of them, but purchased is purchased. I've authorized both the mac and the PC for the same itunes account, so with a bit of fiddling, there really shouldn't be that much of a problem.

I have two questions:
1. How do I export my iphone playlist from my PC (which says which songs to sync) and move it to my mac, so that I don't have to recreate the darn thing.

2. How do I preserve my iphone application data as I migrate. The preferences from my games. The statistics from my favorite solitaire collection. The bookmarks from my ebook reader. The downloaded ebooks from my other ebook reader.

Does anyone know where this stuff is backed up on the PC and where I should copy it onto the mac so that it'll be included in the next sync, or at least not erased? Is this even possible? I'd like to migrate as much to my new mac as possible, but I would rather not give up my Bookshelf bookmarks, Stanza ebooks, or Solebon statistics.

Thank you!