If you are planning using a boot manager software, by all means go with PARTITION MAGIC from PowerQuest! Play save!
I have used PartitionMagic for about 7 or 8 years already, since version 1.1, everyday, to my joy! If you consider getting a serious piece of software to partition your drives, to do back-ups and, most of all, a truly secure multiple boot system, go PartitionMagic.
I know Symantec has taken over it, but it is still a VERY good and reliable piece of software.
Just in case...
