Open the dialer, then tap contacts at top, then tap menu button bottom left (hard key); tap import/export
It will export the contacts in a backup format to the SD card. Easy as pie
that method works great
also one thing to consider
if the phone requires you to sign into a Google account before you are even allowed to use the market, what good reason would there be to not sync the contacts with it?
even IF you never use gmail or anything, having your contacts in a google account means you can restore to another phone, or look them up on the website if your phone is stolen or lost.
the benefits greatly outweigh any fear you MIGHT have of the sync consuming battery, or whatever it may be.
i just dont understand some people, why not take advantage of a service as great and free as this?