hye guys..
can i know which one is good between Samsung S2 and WD Passport Essential..
cause i heard before this wd will produce more heat than samsung.
both price almost the same.
thanks

From what i found,

WD MyBook Essential 3.5inch:
Decent performance;
low cost per gigabyte;
supports RAID 0 and 1;
user-replaceable hard drives;
cool and quiet operation,
three-year warranty;
useful bundled backup software.

Cons : No FireWire or eSATA; bulky power adaptor; supports only Western Digital hard drives; hard drives can't be set up as separate volumes.

WD Elements 3.5inch:
massive storage for a cheap cost;
convenient;
quick;
easy to use;

Cons : not excetionally stylish; busy indicator light is on the back; no software bundle

If you have more budget, go get yourself WD Mybook Essential. But, if you have limited budget, WD Element should be enough for you. For me, better get WD Mybook Essential.

WD My Passport Essential and Samsung S2 sure have that feature. Both is 2.5inch ext. hdd. For 3.5inch, there are so many. Search for WD or Samsung.

You can go ahead and buy the SATA 2 HDD, but since your mobo does not support SATA 2, the HDD will run only at SATA 1 (150Mb/s) performance level. Although the point remains that since no HDD is actually able to sustain a transfer rate of 300Mb/s or even 150Mb/s all the time, you may not notice much difference.

It is very similar to plugging a USB 2.0 device into a USB 1.1 port. Windows will warn you that the device may not function upto its potential, but it doesnt stop working or anything.

Here is a page I found that explains the jumper settings. Look at the OPT1 setting that allows SATA 2 drives to run on SATA 1 ports.