Dell is doing 15% off their storage so Drobo is going for $424.99 + Free Shipping. I guess I am going to go for it Drobo + 2x 500GB 
http://accessories.us.dell.com/sna/...etail.aspx?c=us&l=en&s=dhs&cs=19&sku=A1755231
http://accessories.us.dell.com/sna/...etail.aspx?c=us&l=en&s=dhs&cs=19&sku=A1755231