Don't know much about SD drives...
Does anyone know the difference between this and the Agility 4 series?
BuyDig via eBay [ebay.com]
has the Agility 4 for $300. is it worth the extra $20?
FYI - the Agility 3 has faster (525MB vs 420MB) read speads than the Agility 4 and the 3 has a SandForce controller vs Indilinx for the 4. I've never owned one, so I can't speak to the rest of the differences.