Setting up localhost clone


Hey gang;

How would I go about setting up a localhost backup/staging clone for offline testing/tweaking? I've got the MAMP server running, the database set up, etc. But what urls do I need to change in the database to get the site working? I've found a few of the MySQL LONGBLOBS in the options table, but changing them alone doesn't seem to do the trick — I'm still getting 500 server errors.

Any help would be appreciated! Thanks!