Fusion-IO Cards / SSD / Flash solution?

Hi All,

I'm currently going throug an alignment exercise and need to re-align >1000 misaligned VMDK's - this is approximately 40TB of data. My thoughts at the moment are to buy 2x Fusion IO cards to use as fast local storage for this task ... something high-level like this;

1. Storage vMotion the misaligned VM's from NAS / SAN onto fast local storage (example, Fusion IO)
   
2. V2V using VMWare Converter 5.0 (automated with PowerShell scripts)
   
3. Re-configure the new, now correctly aligned VM's to use the old MAC address etc. (again automated using PowerShell)
   
4. Storage vMotion the new VM's back onto NAS / SAN
   
5. Repeat for each VM
   

I will flesh out the process more, but for now I have a few questions regarding the local flash storage;

• Has anyone used Fusion-IO cards in any of your ESXi 5.0 hosts?
  
• If yes, what was your impression and are there any known snags to look out for?
  
• Do you have any recommendations of which card to use?
  
• Should I be considering any competitors, and why?
  

Any pointers or opinions welcome.

Thanks,

Jon