It's been a little while since I wore Santal, but is my nose decieving me that Pechsniff's Aromatic Chypre is in the right direction? On me, it seems there's a similarity to Santal, but with a little more spice and woods hidden in the background. I wore it for the first time this morning and my wife loved it.
Good call - I can see that.
Interestingly, I don't own Santal anymore since I keep Endymion around, and I thought they were too similar. However, I recently got a bottle of Santal A/S, since I am obsessed with A/S splashes lately, and I fell in love with the scent again. I find the A/S version even better than the cologne, though it doesn't linger long.