[watchit]

I transferred to Mac 20 years ago but I often work in a Windows world. I find there's no problem keeping fingers in many app pies. Page is terrific for some tasks and mediocre for others. Scrivener is great for bringing certain kinds of creative ideas to fruition, but not others. SubEthaEdit is worth checking out if you want to collaborate with remote co-writers on the same document. Nisus is fluid for very long projects with TOC, indexing & bookmarks. But Word 2008 is indispensable for me for most heavy duty word processing tasks and I continue to use it.
If you are used to Outlook in Windows, I would recommend that you use IMAP email instead of POP and use both Mail and Entourage. I work in Mail for some communications tasks and Entourage for others. By using IMAP, anything received, sent or created in one is in sync with the other via your various mail servers. Entourage has some great features (similar to and in some cases surpassing Outlook) but it's typical of Microsoft's bloatware closed-garden attitude to app development. The major limitation to this set up is the old bogey, synchronisation. Not all fields in the contact cards of Address Book & Entourage will synchronise. If only Apple would put some real work into Address Book and iCal, then the endless search for a PIM / CRM combo might end. sigh :) but that's another story. Hope this helps.