Just bought a Maxtor 300GB Ultra ATA/133 HD.

Reading my mobo manual that says the following:

"PCI IDE controller supports PCI bus mastering PIO modes 0~4, and UDMA 33/66/100"

Its an ATX P4ITA mobo.

What are my options to take advantage of Ultra ATA/133?

Ok, that was my first question.

My second question is about the limit of storage drives in one computer. I already have two 40 gb hard drives, one CDRW and one DVD ROM drive. Is there any way to add this 3rd hard drive without having to remove any existing ones. I know my best bet was to get an external firewire or USB based HD. But its too late for that. I couldn't resist the great price offer on this internal hd and the fact that I have already opened the box.

Thanks in advance.