Hey Sainitti:
Yeah, you can do some good stuff on a four track box as long as you don't have to bounce. When you bounce, you lose singular volume/tweak control over the tracks you bounce and that is a negative for "good."
If you have an 8 tracker or more, you probably won't have to bounce thus giving you a better shot at a great mix. [Mixing can take several hours if you're out for "good."
Also, a good mic for vocals, a mic pre-amp, and a reverb box would be an asset to "good."
The more time you put into experimentation, the more often you will arrive at "good."
Have fun,
Green Hornet