I have got the built-in iDRAC 6 Express working on our Dell R610's, but I am about to get some iDRAC 6 Enterprise cards, which can be gotten fairly cheaply on eBay (around 20 USD at the time of writing).
I see that these iDRAC enterprise cards have a capability to use a Dell vFlash SD card. The 8GB dell SD cards look like they are around 35 USD on eBay (I have no idea what a new card costs, and of course the ones on eBay could have had quite a lot of use). For comparison the first 8GB SD card on Amazon I looked at was around 8 USD.
So my question is: can a normal SD card be substituted for the vFlash SD card in the iDRAC? If so, are their any other substitute cards I should consider?