Alright, first off, I'm not disputing the efficiency differences between SATA I and SATA II. My mobo doesn't even support SATA II. I'm having a tough time choosing between the Seagate Barracuda 7200.9 SATA II ($70.50 with SATA cable and shipping) or the Western Digital WD800JD 80gb SATA 150 ($63.50 with SATA cable. I was wondering about the speed differences between the 2.
I have an Asus P4C800 Deluxe Mobo, so they'll both be running as SATA 150. The one thing that really appeals to me about the Seagate is the fact that they have a 5 year warranty as opposed to WD's 3 year. I keep hardware for a long time, so it matters to me. I'm upgrading from an old WD 30gb that has served me well for a little over 5 years. Though, I've heard that their quality has supposedly declined since then.
I guess I mainly want to know the speed differences between the two. I couldn't find a juxtaposition between the two. Any suggestions would be greatly appreciated. Thanks for your help!