I am looking at buying a second hard drive for my computer. This hard drive is going to store my home videos on it so I can edit them then burn them to DVD. I am going to go a SATA 3.0GB/s since my motherboard supports it. Looking to go 160GB+ but prefer a 250GB and trying to stay under $100. I have noticed that most drives have a 8MB cache but would it be smart to go 16MB cache. I have been looking at Newegg.com for a drive. I'm not a person that knows alot about hard drives so a little advice would help. Thanks