Hi,
The hardware your PC uses won't make any difference to the emulated Amiga environment - UAE will provide the same emulated hard drive regardless of whether the PC's HD is SCSI, PATA, SATA, etc...
If you're using a Kickstart 3.0 ROM, it's generally a good idea to have the same version of Workbench and the rest of the OS disks (e.g. installing Workbench 2.x whilst using a 3.x ROM is not advisable!).
You should be able to start UAE, configure it so that the appropriate hardware is emulated (e.g. A500, A1200, etc) and create the relevant sized hard drive file. From there, boot the emulated Amiga with the Workbench disk "inserted" and proceed as you would with a real Amiga.
There are various threads / articles elsewhere about how to install Workbench and the other associated disks.
A quick Google gives this guide:
http://www.classicamiga.com/tutorial_HD2.htmAlternatively, save yourself an installation task and grab a version of AIAB (Amiga In A Box), which contains a pre-installed hard drive image. See
http://aiab.emuunlim.comHave fun!
- Ali