Diva -- Gravy Master is a "browning and seasonng" sauce along the lines of Kitchen Bouquet -- which I believe has penetrated as far as our Neighbors to the North.
John -- the marinade which I find most enhances beef is equal parts red wine and worcestershire sauce. You don't need much. After fifteen minutes or so with the meat the marinade will take on a syrupy consistency which is a) normal; and b) desirable. The meat may be left in the marinade for as short a period as 20 minutes or as long as overnight -- depending on the degree of penetration desired.
Marinate the meat in a pan, after the marinating period is over, pour off the excess marinade and apply the rub to the meat's still damp surfaces. I prefer what has come to be known as a "Montreal" style rub, but is in fact, very California and typical of the central coastal valleys like the Santa Maria and Santa Ynez.
4 tbs kosher salt
2 tbs mild chile (such as California chilei ); or paprika; or blend a hotter chile such as chipotle or New Mexico with sweet paprika
2 tbs fresh ground black pepper
1 tbs granulated garlic
1 tbs granulated onion
1/2 tsp white pepper or chile de arbol (optional)
1/2 tsp rubbed sage
1/2 tsp thyme