After you phsically installed your new hard drive, proceed as follow:
1. Insert a bootable disk or bootable CD
2. In case of Win98 or boot from a bootable disk with DOS, run "fdisk"
3. fdisk will ask you whether you want supports for large disk --> say "yes"
4. create as many of logical disk (dos partition) as you want (1 logical disk for 1 OS).
5. Exit the "fdisk" after finish create DOS partition.
6. Proceed with installation of Win98
7. Proceed with Installation of Linux.
8. Use LILO for boot manager so you can choose between Linux and Win to boot into.
Hope this help.
Nvidia or ATI, it's all depend on what you like and system optimization :lol: