Is it more secure to:
a) Take a password, salt it, then hash it.
b) Take a password, hash it, then encrypt it(Using a symmetric algorithm with a large key)
I'll give you effectively the same answer you got on crypto.SE when you asked this question there, but with a bit more explanation.
Passwords should be salted and hashed. Period. Now if you want to encrypt them after salting and hashing them, go for it. If you do not salt your hashes before encrypting, then you run the risk of either a) the resulting encrypted hashes being identical for identical passwords (worse case) or using a unique IV for each encrypted password which is exactly as much work as using a salt but has the added issue of not providing any protection for your unsalted hashes if your encryption is broken and the raw hashes exposed. This problem is why we hash passwords instead of encrypting them in the first place.
So, the bottom line is, salt and hash. And hash with a good, slow hash function like bcrypt.