F-disk handles linux partitions and other too. The only thing is that they (including NTFS) appears as NON-DOS in the menu.
So if you're going to delete them? Yes, you can use fdisk.
Another thing if you don't want or can't use Partition Magic is to look at www.nonags.com
It's a heaven for freeware and there's some decent diskpartitioning programs there.
Me? I prefer to boot up with my Debian install cd and use fdisk from that one.
*is still wondering what FAT12 is*