IDE controllers







Need a little help. My PC has two HDs, a CD-ROM and a CD-RW which occupy the Primary and Secondary Master and Slave slots. I wish to add an Iomega Zip 250 which require an IDE connector. My System indicates that my PC has a "VIA Bus Master PCI IDE Controller". What does that mean. Do I need to install an ATAPI PCI card for the ZIP? Please advice.
Also I got a 1.2 GHz Athlon on an IWill MoBo, 516M RAM. My video is a PNY NVidia GEForce4 Ti4200, 64M. Question:
1. If I upgrade the mobo and CPU to an Athlon 2200 XP
and its associated RAM, do I have to replace the other componenets?
2. Using my present system, will it be a significant improvement if I upgrade my video to say an ATI 9500 128M.
3. Can I use an 8x card on a 4x AGP slot? A 4x card on an 8x AGP slot?
Thanks.
Hogans Alley