Mixing/mastering help? - Some tutorials..

Just wondering if there's any tutorials out there on getting a good mixdown of a track?
I always want to make sure i have an awesome final mix of a project, and i would like some help on how to make sure i'm doing it correctly...

Anyone know of any the web? Maybe some that supply some sounds to use?

Thanks..[/color]

Go to Google and do a search on the topic. Mixing and Mastering are very involved subjects and require a fair level of expertise.[/color]