Installing multiple burners

I have a 2Ghz comp running WinXP with 640 mb ram and a 400 watt power supply. I plan on installing a total of 4 cd burners, using the Nero Ultra Edition for burning. What’s the best way to accomplish this from the hardware side of things? Do I need special cabling? Are there any software tweaks that I should be aware of? Any other special or unique issues? Thanks.

It might help if you provide your hardware configuration, (that is how you plan to connect them), and how you intend to use them.

Buy 4 equal burners (brand, type, firmware version) for the best and fastest burns.