Chris Reeve used BG-42 on his old Sebenza's, an some people still prefer it to S30V. It has a pretty impressive formula for a steel from before the days of powder metallurgy.
If you want to try something basically in BG-42, Spyderco is releasing a Manix sprint run with an FFG CTS-B75P blade--that's Carpenter's powdered version of BG-42, a steel that, from what I gather, Carpenter made specifically at Spyderco's request.
Zippo--that's a great looking set! I'm really jealous. I have one peel-ply CF knife, and it's the Stretch 2 in CF and ZDP-189. It's too bad I missed out on the S90V and CF Para 2 and Military, I would give my left you-know-what for a set of those 2 and the Manix 2 in the same materials. Seriously.