Digital Cameras with 10x Optical Zoom (as requested by Matt - pictures above not to scale?)
Size Comparison, hp 945, Z1, DX6490, Canon S1, 750, 765, S5000 (vaguely to scale)

• 3MP
  
• Canon S1 IS '04 3mp, 640x480/30fps with sound, Image Stabilisation £380 (reviews)
  
• Fuji S5000 '03 3mp, 320x240/30fps inc sound. £200
  
• Olympus c720 '02 £169 / c725 '04 £183 (8x optical, 3mp, 320x240/15fps ?sound),
  
• Olympus c730 '02 (3mp, 320x240/15fps sound) N/A,
  
• Olympus c740 '03 (3mp, 320x240/15fps no sound) £214,
  
• Olympus c760 '04 (3mp, 640x480/15fps inc sound) £240 *,
  
• Minolta Z1 '03 3mp, 640x480/30fps sound, 4cm super macro £200

• 4MP
  
• Olympus c750 '03 (4mp, 320x240/15fps inc sound, super macro to 3cm) £260,
  
• Olympus c765 '04 (4mp, 640x480/15fps inc sound) £280 (sd review) *,
  
• Olympus c770 '04 (4mp, 640x480/30fps inc sound, 3cm super macro, includes 128mb as standard (XD)) £409 *,
  
• Minolta Z2 '04 4mp, 800x600/15fps (640x480/30fps) sound, super macro mode £250
  
• Kodak DX6490 '03 4mp, 2.2" LCD, 320 x 240/20 fps inc sound £240 (reviews)
  
• Panasonic FZ10 (4mp, 12x opt), FZ2 (2mp, 12x opt), FZ1 (2mp, 12x opt).

* = World's smallest 10x Optical Zoom Digital Cameras!