amd 10.5.2 rev.1

amd x2 3600+ (2 Ghz)
mobo Asus M2NPV-MX (bios rev1101)
chipset:nforce 430+geforce 6150
integrated graphic geforce 6150
ddr2 667 2Gb
ide dvd
sata2 320 Gb
ps/2 mouse & keyboard

I have do a test to install this 10.5.2 rev1 on my sata2 320Gb hd.During installation ,i can select english language and go into the disk utility.I am able to see my 320Gb hd and its partition.I didn't go further because i don't want to interface my winxp and vista on the hd.There is important data on my hd.
I intend to buy another sata2 320Gb hd to install leopard.
My question is ,can i install leopard with sata2 hd ? I don't want to spend a lot of money buy hd ending can not use it for leopard.I know integrated graphic 6150 not function well ,i just want to give it a try.i will buy a video card later.

Thanks in advance.