UPDATE:
I've loaded both Raid2Raid and RAID Recovery (both from DiskInternals). RAID Recovery is an evaluation copy that is fully functional, up until you want to do anything with the files it's found on your re-created array (i.e. It will flaunt you with a "preview", but require you to pony up $250 US to copy/move/mount anything). It takes about sixty seconds to read/analyze all drives available. It then asks you to chose the participants in your dysfunctional array. Once chosen, it analyzes the array using different stripe sizes and drive orders, giving you the best possible configuration.
Using this tool, I've seen that my RAID array is alive and well, resting peacefully in its failed-mobo-chipset coma (including my outlook.pst files and game saves).
Not so lucky with Raid2Raid. Free program that says it will enable you to transfer RAID array between chipsets, as in the case of a mobo failure (emphasis mine). It claims to even do this for hardware & OS that don't support RAID.
I wouldn't know. It hangs on the initial scan for disks. Where RAID Recovery found all of my disks (including PATA and non-RAID SATA disks) within 60 seconds, I've let R2R "search for disks available to scan" for over 4 hours, with nothing to show but a green progress slider hypnotically droning across the screen. All other options for the program are unavailable, including minimize/close buttons on the window, and no indication from the HDD LED that there's anything happening. Task Manager shows it as running, but when used to end the process, gives a dialog box stating that it's waiting for a response from me. Perhaps it's not compatible with W7, although I've tried installing/running in compatability mode for both Vista and XP, as well as installing/running as administrator.
There are no forums dedicated to R2R support, and the only reference I've found besides download locations are from users that say it's worked like a charm. DiskInternals offers no explicit support for the free program, although I've emailed their support crew anyway.
I realize this forum is not support for either program, but I'm posting my experience in the hopes that once resolved, this can serve to get someone such as myself out of a future jam.
Thanks for all your help thus far, Gents; you've gotten me further than I could have believed possible.
Back to Google I slog.
Peace