I use a combination of reCAPTCHA Mailhide [1] and Javascript.
By default I use the link to my "mailhidden" email. Then, some Javascript code [2] replaces that link with a mailto link. The email is saved in the js file after being ROT13'd and encoded as HTML ASCII entities.
If the user has JS active, he/she sees a regular mailto link. Otherwise, he/she sees an http link to recaptcha and, as long as the user's browser can display images, he/she can solve the captcha and see my email address.
You can see an example of this working in my personal site. [3]
Until spambots can run javascript or solve recaptchas, I'm safe. :)
[1] http://mailhide.recaptcha.net/