question on Sata hard drives...

ive seen the guide above saying that max speeds for sata II are 300 Mb/s... how come new egg says 3.0 GB/s? im really confused on this.

You've got your capitalization backwards. The maximum speed for SATA II is 300MB/s ~= 3Gb/s. 3Gb/s is actually 384MB/s but some of that is lost to overhead and they choose to call it 3Gb/s for the sake of marketing. 2.34Gb/s just doesn't sound as good.

The bottom line is that it doesn't effect you at all, unless you're going to have a large RAID volume, because you'll never come close to the max speed. The drives themselves are only incrementally faster as their technology is slightly better. It's not as if SATA I drives are 150MB/s and SATA II are 300MB/s. Even the fastest SATA drives can only manage in the 70MB/s range sustained.

Even a large raid volume won't use it because each drive is on its own full bandwidth channel. Only by having many drives being used at the same time on a single eSata port will it bottleneck.

ohh. so its like 3 gigabits per second then and 300 megabytes per second? those tricky bastads.

I have a feeling the marketing jargon and hype is only going to get worse. So many people are new to computers and are going to get trapped in the race for more GHZ

16x DVDR 3GHZ DVD WRITER BBQ!
hahaha