Ahh, it came pre-configured with the RAID1. Now I understand. My mistake for assuming that you had set up the RAID1. But Dell makes it more interesting...
if I go with "option 1" ... I'll setup a new RAID with the new SSDs. I'll need to somehow partition this to create 2 new logical drives with 2 new drive letters, say E and F. (Do I need special software for this?) Then I can restore my C and D drive backups to the new E and F drives on the SSDs.
With option 1, you don't use the backups. You pop the two new SSDs onto the two remaining SATA ports, splitting power to them. Note that with a Dell motherboard, you may have to go into the BIOS and enable both of those ports by hand - many Dell BIOSes aren't smart enough to detect the addition or removal of a drive. If you are offered a choice of IDE/AHCI/RAID mode, choose RAID.
Then boot to BIOS again. Look for a message that says something like "Press CTL/A to configure RAID." Press CTL/A to interrupt it at this point. In the new menu that comes up, you will build a RAID1 array out of the two SSDs. (Sorry, I don't know how, but it should be close to evident).
Then you boot to Windows. The new RAID volume will be seen as a single blank disk in Disk Manager (Control Panel - Administrative Tools - Computer Management, and then Disk Management). Stop me now and ask for extra advice if you are running Windows 7. Otherwise, right-click on the picture of the blank space in this new volume, initialize it as an MBR volume, right-click again, choose to create a partition, make one the size of your C, then repeat for D.
Now clone from your existing drive to your new "drive," either by using cloning software or doing a Win7 system dump booted from the old drive and a restore booted from the Windows DVD.
Then what? Would I go into the BIOS or something and set E (which is a clone of C) as the new boot drive? Then I can remove the last raptor and eliminate the original array, and maybe at the very end change the drive letters on the SSDs from E and F back to C and D so all my stuff will work properly??
Slightly easier. After the clone, power off. Disconnect the old drive. Your system will choose to boot from the new drive, which was made bootable by the clone process, because it's the only bootable device. (again, if this is a picky Dell BIOS, you may get error messages about the missing drive and have to disable its port in BIOS). The boot partition will be made C, the next partition will be made D, and presto, you will be running.
And if anything goes wrong during this process, you can stick your original disk back in and boot up from that. Then cuss me out, give details, and try again.
Finally, there is a (low) chance that the transferred system will boot partway and hang. In that case, boot from the OS DVD and choose a Repair install.
==========================================================
Let's get more specific.
What OS are you running?
Do you have a backup program, and will it do image backups booted from its own CD (if not, Win7 will do it for you)
Do you want to clone via an external backup, or directly from the old drive to the new volume?
Do you have an external drive and, if so, is it USB, USB 3.0, or eSATA?