If you want to REALLY get down to the nitty gritty warm the oil slightly and apply in the direction of the grain. This may take, for the most effective "seasoning", 4 - 6 coats waiting in between coats. If you do one coat in the morning, one at night, one in the morning, etc., that will be fine. Wipe off excess in between coats.
Like Andy said the best thing to use is a food-grade mineral oil, which is CHEAP! It will not go bad ever. Never use vegetable or corn or olive oil as it will turn rancid. If you use the butcher block often re-oil monthly.
If you have to sand because of deep grooves be sure and re-season using the warm oil again.
Since you are seasoning your cutting board do all of your wooden spoons/utensils too. It really helps keep them from splintering and lasting for years and years!!!
I've looked at those boards before online - they are beautiful!!!