The problem with Premiere 6 is that it's buggy. The code has never been re-written, they just piled bug fixes, new features, and new versions on top of the old code. Premiere Pro, while probably not an FCP killer, should be a much better program. It's been re-written from scratch and has much-increased functionality.
Your PC options are Premiere Pro, Avid XPress DV, Pinnacle Edition 5, Vegas 4.0, and maybe a few others. I think there's another program from Pinnacle. Anybody know if Speed Razor is still around? Is Media100 available on PC?
www.videoguys.com is a good place for someone jumping into the DV world, as is
www.adamwilt.com