Neil,
It is my pleasure and keep the questions coming. Ribeye's have quickly launched themselves to the top of my steak list. Just absolutely love the spinalis meat. I like using salt, pepper, garlic on my steaks. I do not like to use to many seasonings because this type of steak is loaded with flavor. Now if I am doing filets, I am a big fan of coffee encrusted steaks marinaded in a nice red table wine. When using charcoal (lump and high heat) I will use Weber's GBS sear grate which gives unbelievable sear marks to the meat. I will sear for about 2 minutes per side and finish the steak over indirect heat. I myself love a Ribeye grilled to medium because this allows the fat to liquidize which will give you a perfect bite every time. I have had many Ribeye's cooked more to the medium rare side which can leave you with a chewy steak.
On a gas grill I will sear over high heat for 2 minutes each side. I will rotate the steak every minute to obtain diamond marks and then finish over indirect heat.
Sound good?