It depends on your definition of "cheap and reliable". The cheapest Intel NIC on Newegg is $25. It has a five-star rating and most people would agree that Intel NICs are good.
Newegg also has a $10 (shipped) Rosewill NIC that also has a five-star rating. I use both.
If all I needed was a NIC that "works", I'd probably buy the Rosewill NIC for myself and an Intel for a client's office. I wouldn't expect either one to cause me problems.
It really depends on what you are using the computer for and what your expectations are and how much money you have. I wouldn't put a $25 NIC in a PC that will be used to browse the Internet and get email and I wouldn't put a $5 NIC in my servers.