Привет.
Летом я тоже играл с web камерой.
Вот код моей программы.
/*
* Created on 19/06/2005
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/

/**
* @author leon
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
import javax.swing.*;
import javax.media.*;
import javax.media.format.*;
import javax.media.util.*;
import javax.media.control.*;
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import com.sun.image.codec.jpeg.*;

public class Aleksey extends Panel implements ActionListener
{
public static Player player = null;
public CaptureDeviceInfo di = null;
public MediaLocator ml = null;
public JButton capture = null;
public Buffer buf = null;
public Image img = null;
public VideoFormat vf = null;
public BufferToImage btoi = null;
public Aleksey()
{
capture = new JButton("Capture");
capture.addActionListener(this);
String str1 = "vfw:Logitech USB Video Camera:0";
String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
di = CaptureDeviceManager.getDevice(str2);
ml = di.getLocator();
try
{
player = Manager.createRealizedPlayer(ml);
player.start();
Component comp;

if ((comp = player.getVisualComponent()) != null)
{
add(comp,BorderLayout.NORTH);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
Frame f = new Frame("Vulf privet");
Aleksey cf = new Aleksey();
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
playerclose();
System.exit(0);}});
f.add("Center",cf);
f.pack();
f.setVisible(true);
}
public static void playerclose()
{
player.close();
player.deallocate();
}
public void actionPerformed(ActionEvent e)
{
JComponent c = (JComponent) e.getSource();

if (c == capture)
{
FrameGrabbingControl fgc = (FrameGrabbingControl)
player.getControl("javax.media.control.FrameGrabbingControl");
buf = fgc.grabFrame();
btoi = new BufferToImage((VideoFormat)buf.getFormat());
img = btoi.createImage(buf);
}
}
}

Да может быть что при создании проэкта тебе понадобятся джары с JMF.
Просто скачай JMF c SUNa. И достань от туда джары.