Hi,
You can use a USB to USB laplink cable.
This one is available in UK
http://www.maplin.co.uk/products/module.asp?CartID=040918093533857&moduleno=25600
Similar cables available most places
Simple plug and play, two adjacent Windows Explorer like Windows, move files at your hearts content simply and easily.
Not Formula One speeds, but provided both machines have USB. You don't even have to take the top off to get inside the computer.
The cables may be available at USB 2 speeds by now, but you would need USB 2 on both computers to use USB 2 anyway
Networking or moving hard disk is the solution I would use, but if you are not comfortable taking the top off it is very easy.
hth
Ceri