If you're having trouble with organizing your ROM hack, use Lunar Helper
Check out the site's Frequently Asked Questions
section. You might learn something new from it.
is full of useful diagrams on the more technical aspects of SMW. The Data Repository Forum
is full of other threads like this.
can preview .bin graphics files, it will save you the trouble of remembering which graphic files are what.
is the Glossary. Whenever you don't understand the meaning of a word you've seen here, check this page out.