ATA v SATA -- Performance

I'm building a new system but I have to wait a while to save up enough funds for some new hard drives. Right now I have a Maxtor 60GB - ATA133 and a Western Digital 160GB - ATA100. How much of a performance difference is there between my current drives and the prospective drive (Western Digital Caviar SATA 3.0Gb/s) I plan on getting. I also might grab two of these and put them in a RAID 0 setup.

Thanks for any help.

New System:
AMD64 3700+
ASUS A8N-E nForce4 Ultra motherboard
2GB Geil Ram
XFX 7900 GT

 

Take a look.

 

The second one is a Sata 150 drive.

 

Thank you so much for running that comparison. That's a nifty program too, I just picked it up.

Thanks!

 

No problem