Listed below are various model files I've collected from the web over the last year:

• npn.mod - NPN transistors
• npndarl1.sub - NPN darlington subcircuits #1
• npndarl2.sub - NPN darlington subcircuits #2
• npndarl3.sub - NPN darlington subcircuits #3

• pnp.mod - PNP transistors
• pnpdarl1.sub - PNP subcircuits #1
• pnpdarl2.sub - PNP subcircuits #2
• pnpdarl3.sub - PNP subcircuits #3