We tend to go for 100-105 C oven temp. Season well just before placing in the oven. Cook until 10 degrees C off the target temp for how well done you like the steak.
Pull out of oven and leave to rest for ten mins and then sear for approx a minute to 90s on each side.
As I'm totally jealous of @HatBeard, I'm doing steak tonight too.
What oven temp & target temp?
I was thinking 100 oven & 35 for the meat (it's a 2 inch slab of rib)