I have a Diesel Roster, a steam roster, a freight car roster, a passenger car roster, and more.
Locomotives that Santa Fe had and are available in G scale:
4-6-0 ten wheeler 1879-1938 (bachmann) 4-6-2 pacific 1903-1956 (Aristo, but poor rendition) 4-6-4 hudson 1927-1956 (USAT?) 2-8-0 consolidation 1897-1955 (Aristo is coming out with one some year) 2-8-2 mikado 1902-1956 (Aristo, but poor rendition) 4-8-4 northern 1927-1959 (rumors of USAT, I have a custom one) 2-8-8-2 mallet 1909-1948 (Aristo - Santa Fe had Alco)
F3 (USAT) F7 (LGB, very poor model) RS-2 (Aristo RS-3, can be modded) GP40 (Aristo)