1. Performance increase will be noticeable when you have things like loading screens, or saving/creating large files. Some people argue that it's a big difference in games, however, I don't really agree. I can't say it's even noticeable really. It's not going to help framerate or anything like that. On paper the transfer rates and such is quite a difference. But I doubt you are going to see your computer start flying.

2. Yeah, just let it create the two 150 gig partitions and just leave them even. To merge the partitions, you'll need a program like Acronis Disk Director or Norton Partition Magic. You can just leave the partitions like it is and just have two different storage drives. Unless you're very anal about it, just leave it.

3. I don't know where they get the 1.5 and 3 gig per second, cause I know when you transfer drive to drive, it's not near that much. It's probably how fast it can read/write data on it's own drive. Like if you move files from C:\stuff to C:\things it will go that fast.

4. The whole jumper to get 3 gig per second is if you have a very early SATA motherboard. In fact I don't even know if that is right, since SATA drives will only go as fast as the port is. If you have a SATA 3 drive and plug it into a 1.5 port, it will go 1.5 g/sec. You'd have to read your motherboard manual to see if there is such a jumper.

If it is a brand name computer that came with a 1.5 g/sec SATA drive, then that speed is most likely locked. I doubt there will be a jumper to change it to 3 g/sec.

Most likely you won't have to worry about any jumpers.

Thanks so much. You have been really helpful. I am going to back up all my data (once its finished downloading) via DVDs, then I will experiment with this.

I will see if I notice any difference with my games. If not, I am going to attempt to gain back my 200 GB. If I have any problems - I will get back to you.

THANKS AGAIN!