How to sync all my Exchange files (including Notes and Tasks) to my Nexus S? I need to find a way to sync my Outlook notes and tasks to my Nexus S.

I would also like to have all the fields I use in my contacts in Outlook available in my Nexus S.

I rund on Exchange and the mail, contacts, and calendar syncronize OK with my Nexus S, though some fields are not available in Gingerbread and can't decide how long back I want my appointmens and emails to sync...
Try NitroNote - it offers syncing for Outlook Notes. You'll need to install apps on your desktop as well as the device.

There's also the more powerful TouchDown client which will sync email / contacts / tasks from an Exchange server.

Finally, lots of users claim to find gSyncit to work well for them, but YMMV.