I have a PC with a IDE 30G HD, with XP Pro. Let me call it #1. I will install a second HD, a SATA one, with 120 or 160G. I'll call it #2. Let me tell what I intend to do, so you can see if it is the right way:

1- Install #2
2- Format #2
3- Make an image of Xp+programs of #1,  over #2
4- Trought Setup, make boot VIA #2
5- Format #1, being used from now as data bank

I have an additional question: #2 will have name C:  ?

THANK youWhat about
Install #2
Remove #1
Format and install Windows on #2
Reinstall Programs
Put #1 back in, jumpered as slave
Copy Data Files from #1 to #2
Format #1

#2 will definitely be C drive and will have a nice install and NO surprises in the future.

Your way will BRING you heartache. The only reason to attempt this is if you do not have a Windows CD or the legal CD's of those programs.  I have both. The reason is to try to jump the fastidiuous re-installing of everything... Sometimes that's the greatest gift you can give your computer. What were you planning on using for imaging the drive?I have Partition Magic 8.  Have a read.

http://www.computergripes.com/PartitionMagic.html

http://www.mikeshardware.com/reports/powerquest-greedy/index.html



The new SATA drive will ship with drive utilities...use them to create a 30G partition and use their clone utility to clone the IDE to the 30G SATA partition.
Make sure you set the 30G partition as active...