You´re welcome, 7styles.
Don´t know if (don´t think) you can transpose a disc image to another system (the drive being RAID 0 doesn´t matter, it is just seen as a single drive).
If you´re getting an SSD, get one with good read and write speed, like the Samsung 830, and hook it up to the fast SATA port, you don´t need RAID0. Sure you can measure some difference in performance, but I doubt you´d feel the difference, I can´t speak from personal experience, but you read this and that in trust worthy reviews.
You can´t drag and drop installed programs, you have to reinstall.
So, to make it easy, install SSD, get OS running, copy all important installable files and folders, and burn them onto a media, then feed your new rig with that.
I don´t know if it´s possible to un-RAID two RAID0 drives, we´ll have to ask one of the wizards here, because that would open the possibilityof getting all your files onto one drive, and then just install that in your new rig as a storage drive.
How big will your SSD be?