My main machine is a Mac but I have a PC laptop, for one reason and one reason only - the Royal Mail's postal software doesn't work on the Mac, and printing hundreds of pounds of postage through an emulator was frequently unpleasant. As time has gone on, I've got used to Windows again and, if I may be so bold, I am now such a slick operator that I don't need to think about whether to press CTRL or the Apple key when I cut and paste. I love me, I'm great.
A little while ago I was looking for a piece of software to write RSS feeds on the PC that was as good as Feeder on the Mac (a very easy-to-use piece of software if you handle RSS feeds manually). No one could help. But for people asking the question on Google, here is the answer: Mirabyte Feed Writer 2.
They both have WYSIWYG editors and HTML -> XML converters, will download and upload your feed via FTP or let you write it locally, and have a some nice project-orientated features. Feeder is $40, Mirabyte is $60.
I hope this helps a few people, maybe you will get a promotion. If so, I want a cut.