Which way is more effective to write case tests by Webdriver?

Hello
I'm planning to use Webdriver to write my test cases.
Because I'm new to Selenium , for now I write case tests by selenium IDE and then export them to Webdriver java code. I want to know if experienced Webdriver users also write case tests first by Selenium IDE selenese and then export that into Webdriver and modify generated code if needed, or they write Webdriver code from scratch???

Which way is more effective???

Thanks in advance

you could follow this:
http://united-coders.com/nico-heid/automated-frontend-testing-for-the-lazy-with-firefox-selenium-webdriver-and-hudsonjenkins

up to the finetuning the test section. The latest Selenium IDE 1.5.0 is available which is usable on FF between version ? to 9 (? maybe 4, but not 3.x and earlier). You can then take Java WebDriver export and use it in Eclipse's IDE for example or copy/paste code from website I gave.