For home use and especially where we want machines to work without trouble I find it best to not implement RAID. It's costly to support and failures often cause the owners to lose it all. Yes all the moderators write "We only lose what we don't backup."

So here's my advice.

Move to a simple one hard drive system setup, install your OS, your apps and restore your data.

About data recovery. Try http://www.drivesavers.com
Bob