If all you want is RAID 0 or RAID 1 support, consider buying an inexpensive PCI RAID card.
As Smilin mentions, I'd want to have a REALLY good reason to use a dynamic disk before I'd ever use one. And I haven't found that "good reason" yet.
As always, whether you go RAID or non-RAID, Basic or Dynamic, or whatever....keep ongoing backups of important data. Folks lose data from RAID, non-RAID, Basic, and Dynamic disks all the time for a multitude of reasons.