i have my main 80GB hard drive, which is 7200 rpm, an old 20GB 5400 rpm drive and a DVD-ROM/CD-RW drive. all are IDE. i have two of the faster IDE cables (with lots of thin wires rather than fewer fat ones). i'm wondering about the best way to configure them. at present i have the two hard drives as master and slave on the primary IDE channel and the cd drive on its own on the other channel. but would it be better to do it another way?

also which hard drive should i put virtual memory on (if you can in fact choose where it's put), and which should i put my photoshop swap file on?

i have winows xp professional.

thanks