Couple months later.. but perhaps this will help someone down the road.
Was in the same exact predicament. Did the whole delete, new partition, format, nothing would work. But every time I was booting up I had my usb plugged(which had my raid driver on it). But it also had a bootable dos, and parted magic from when I was doing hdderases and secure erases. So I'm pretty sure in someway when it was trying to partition for the system reserve, the dos or parted magic was interfering.
So the final solution was I just unplugged the usb, booted up windows 7 install disc and just waited till got "install driver" for my ssds and then plugged in my usb and worked like a charm after that.