I've never considered notepad being a decent editor - look for something else which has a column edit mode as well as a powerful search&replace engine (personally I prefer UE, but your mileage may vary).
You'll probably run into problems using MK with Wysiwyg R22 - there was quite some discussion regarding this program but without any results... so, be prepared!
*EDIT*
GOD
yep, I know him. He's sitting right next to me
