Hello all, I have a older A1181 not sure when they came out 2006? Anyway I recently replaced the hard drive due to the old drive crashing. After putting in the new drive I realized I had lost the restore disk. So not sure how to install the OS on my machine, and looking for advice. Could I just upgrade my system to snow leopard if I buy the box set thats $129? Also if I were to buy the restore disks online could that work?