Real-world, noticeable difference, not likely. Sustained data transfer rates are considerably lower than any of the interface speeds (100, 133, 150, or 300MB/s).
I do, however, recommend SATA over PATA. It does perform better. Not so much because it can transfer at 27MB/s more than PATA, but rather the controller that handles the data coming and going from the the drive better than PATA. SATA transfers data serially, and the controller has an easier time dealing with 1 bit at a time, rather than several (as in PATA).
SATA cables are also easier to manage, and allow for better airflow.
Intel E6750...........PSN: ELBATROP
XFX nForce 650i Ultra
Patriot PC2-6400 8GB (4x2GB)
36GB WD Raptor
Samsung SyncMaster 931c
Samsung SyncMaster 750s
Windows 7 Home Premium 64