Mitch:
This is the setup I have for my iPad1 .... and I love it!! The apple bluetooth wireless keyboard (it is cosmetically identical to the macbook/mbp keyboard ... so it looks good with the iPad!), and the InCase Orgami workstation for iPad:
As long as you are aware that an iPad is NOT a laptop, and does have a few limitations (although with the right apps, those limitations are negligible ..), you can be VERY productive on an iPad ... and the 10+ hour battery life cannot be beat!!
As far as word processing goes, spend the $16 to buy the
Premium Documents To Go suite ... It is a very capable Office suite that does Word, Excel, and PowerPoint flawlessly.
I update 22 electronics and health blogs just fine with my iPad.
.
.