Apple Wireless Keyboard and PCs

So I love the new Apple Wireless Keyboard, however, you should be aware that it's a pretty crappy PC keyboard - as the fn key doesn't work (at least not in Vista or XP), you don't have access to pgup, pgdown, insert and (most importantly) forward-delete, which makes deleting files pretty hard.

You can use SharpKeys to rebind some existing keys, but it's not a perfect solution.

I bought the wireless keyboard as I wanted to reduce the distance between my mouse and my keyboard - ideally I'd like the new wired Apple Keyboard (which I also own) but without the numpad area.