There is a 60 dollar 11gig download on psn right now.
Just bought it off the Dutch PSN store, it gave me the 11GiB BioShock 1 download and a 6.5GiB BioShock Infinite download. So looks like preload is available.
Doesn't look like you can preload in the US - I only see downloads for Bioshock 1 and the Infinite XMB Theme in my download queue. Not sure why they would allow preloads in one region but not another.