Well currently using optical drives on SATA is a bad idea and causes headaches of its own. Stick with IDE, because it’s tons cheaper than SCSI. I would personally go with liteon drives, you can pick up 1 52x liteon drive at newegg for $27.00 and free shipping. So for 3 drives it would cost only $81. Since you will be burning the exact same image to each burner, you won’t have to worry about having them all on separate channels. You can have 2 on the secondary channel (master and slave) and one on the primary channel (master/slave).
You might have problems if your hard drive is not on a controller card, there will be a bottle-neck from the hard drive to the 3rd burner. This is a problem with the IDE interface and there’s not much you can do about it. I would also suggest that you pick up a ATA133 controller card. Maybe this one for $29. Granted, this card is only ATA100 but you probably won’t know the difference, and this is more than enough for 52x cd burning. And it puts your cost right at $110. Not too bad for what your getting.
So, you would need to set up the hard drive on the controller card, and make sure your motherboard can boot from the card, then, set up your cd burners on your motherboard’s built in IDE connectors, and you’re set.
Instead of discjuggler, I would reccomend nero, I think it may be a little cheaper, and it had lots more updates and many more people use it.