Another way is to connect your old drive inside your new computer as a "slave", or secondary master, then just copy across.

You can also just buy a cheap hub. They are really getting inexpensive, even the wireless ones. Then you would have the means to network PC's at your house. If you got a wireless hub and have a laptop that goes between home and work, it's great. I have mine setup that way and can just turn it on in the house and get on the net.

There is also something called a "Null Modem Cable". That's the way we used to do it in the old days, before all this fancy networking stuff. That goes serial port to serial port. I can't even remember how that works, but there is probably info on search engines about it. Here's something about it. My goodness... this is really technical. I used to write papers like this about 16550 UARTs and FIFO buffers. It's been so long that I can hardly remember what any of that means Windows has made us all stupid, I guess:

http://www.vision.net.au/~timotsc/null/nullmodem.htm

Probably the least technical way is the crossover cable. It only gets sticky if you don't have network cards in both computers, or don't have file sharing setup on both. If that is all in place, then it's fairly easy, drag and drop, more or less.