HtmlUnit post as cURL

Not quite sure how to use HtmlUnit to poke google as cURL does in the
example script at:

http://code.google.com/apis/gdata/articles/using_cURL.html#authenticating-
clientlogin

which I'd like to do from Java, but am a bit unfamiliar with the HtmlUnit
API. How do I get this more "cURL"-y?

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package auth;

import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.WebClient;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
import static java.lang.System.out;

/**
 *
 * @author thufir
 */
public class Main {

    /**
     * simulate:
     * curl https://www.google.com/accounts/ClientLogin
    -d Email=just_your_username_here_without_at_gmail_dot_com
    -d Passwd=your_password_here
    -d source=Google-cURL-Example
    -d service=reader
     */
    private static final String SURL = "https://www.google.com/accounts/
ClientLogin", DUMMY = "http://htmlunit.sourceforge.net";
    private static final String source = "Google-cURL-Example";
    private static final String service = "reader";
    private static String email = "email", passwd = "passwd";

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            googleSIDprogramatically();
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE,
null, ex);
        }
    }

    /**
     * what's the syntax to declare NameValuePair's as class fields?
     * @return
     */
    public static List<NameValuePair> parameters() {
        List<NameValuePair> parameters = new ArrayList<NameValuePair>();
        parameters.add(new NameValuePair(email, "email"));
        parameters.add(new NameValuePair(service, "service"));
        parameters.add(new NameValuePair(source, "source"));
        parameters.add(new NameValuePair(passwd, "passwd"));
        return parameters;
    }

    /**
     * how do you send a BrowserVersion with a post?
     *
     * how do you get a HtmlPage returned from a PostMethod?
     *
     * is there a better way to pass parameters?
     *
     * @see http://code.google.com/apis/gdata/articles/
using_cURL.html#authenticating-clientlogin
     *
     * @throws java.io.IOException
     */
    public static void googleSIDprogramatically() throws IOException {
        WebClient webClient = new WebClient(BrowserVersion.FIREFOX_2);
        PostMethod method = new PostMethod(SURL);
        method.addParameters(parameters().toArray(new NameValuePair[]
{})); //?correct? acceptable?
       
        String page = method.getResponseBodyAsString(); //assuming the
//response is String type
        
        out.println(page);

    }
}

thanks,

Thufir