Hick, bother, you and me seriously need to get together one of these days! That's a nice pile of O1!
O1 is a real nice blade steel. It's very dimensionally stable during quenching (ie resists warping) but it's more than double the cost of 1075 or 1095. For those just starting out you may want to go with a less expensive steel.
1095 makes a great blade, but you really have to be careful not to overheat the blade when hardening. Overheat a little bit and CRACK! Underheat it a little and it won't harden properly.
1075 is a great compromise: it's inexpensive, readily available, not as sensitive during the heat treat and has enough carbon to it that it'll take a keen edge and hold it well.
Want to go cheaper still: try OCS steel.
The vast majority of it is 5160 (a great blade steel) and all you need to do is go to the junk yard (or your back yard
) and pull it off the car.