Raptors are sata which is what really has brought it into the spotlight. Probably wont notice a difference between sata and IDE but I will say this...sata cables are teh rox0r/ They are relatively flat and only about an inch wide compared to IDE which are um...big. Round IDE cables help some but sata still way smaller.
SATA & PATA are both IDE. SATA interfaces are the future for now and being state the art improved in every way including noise.
Thanks to all that responded
If you have situation that will take chunks of data that are predictable at a non-constant rate, sata might be slightly faster as the interface from the cache on the hd to the system is quicker, but actual speed of data delivery from platter to pc will have no noticable difference (between comprable drives of course)