Hoping for a helpful and gentle response to what will seem some very dumb questions from a Mac newbie. I'm a lifelong Windows user who has been waiting since October to make the

switch, reading this forum faithfully in anticipation of finally getting my first MBP once the revision/refresher date at long last arrived. But a few things my inexperience and unfamiliarity leave me wondering:
1) Since much of my professional writing work involves editors/publications that prefer Windows-based .txt, .doc or .rtf files, I believe I need to purchase Office 2008 for Mac, correct?
2) Our family video camera is a JVC Everio HDD that records in MPEG-2 format. I've heard there are compatibility issues between this camcorder and a Mac, so does that mean I need to shell out the whole $499 for the Special Media Edition of Office 2008, or would I be fine with the basic Office 08 and simply use the bundled iMovie software to manage and edit home video?
3) I am a wireless internet neophyte, having never used a G3 card. Where do you get one (Apple, local AT&T store?), and is it a monthy service fee or do you pay simply based on usage? I have wireless internet set up at home and I know the built-in receiver on the MPB will work fine there, but I simply don't know the basics of what I'll need for remote use (I KNOW this sounds stupid and basic to everyone, but I just haven't had remote needs until now).
4) Will I encounter any issues moving data from my old Dell laptop to my new MBP if I was just planning to migrate stuff 5 GB at a time using a USB-connecting external drive? Will photos, files, documents convert automatically to usable formats in my new MBP or is it not that simple?
5) Is there any easy way to transfer my iTunes library off our home PC and onto my new MBP in one fell swoop, or am I in for a time-consuming transfer via the aforementioned 5GB USB-connecting external driver (or bigger external drive if I buy one to save time)?
I realize this is sub-basic stuff to many of you, but any knowledgable answers would be very much appreciated. I promise I will catch on as fast as possible to the glory of

with just a little help. Thanks.