If you are not RAIDing and dont intend on "expanding" or "spanning" the disk it doesnt matter which one you choose you want notice a difference. Although i believe "Basic" disks have better compatibility across different platforms.
Dynamic are used for software raiding and "expanding" or "spanning" the disk.
If "Somejoe7777" is around he maybe able to go into this a little more.
The only reason to use dynamic disks is to use Windows software RAID. Otherwise, it offers little advantages.
Especially if you already are running hardware RAID, I would keep the disk basic. Further, there is less low-level software compatibility (i.e. partition managers, data recovery software). It can be difficult to find programs in these categories that work properly with dynamic disks.