The simplest way to do this is either transfer your music onto a portable harddrive and then copy it back from that (you can use your iPod for this too if it supports being mounted as a mass storage device - and provided you have enough space for all the music - through Windows). You could also connect the two computers together and create an Ethernet network, or if your house has wireless Internet then just turn on Windows file sharing for the music folder and copy it across to your new laptop (this process can be very slow depending on the type of wireless connection you have and how far it is from the router).

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and victorious in war shall be made glorious in peace.