To be sure, you cannot make a hardware-based RAID-0 setup with an SATA hard drive and a PATA hard drive. In order for hardware-based RAID-0 to work correctly, both hard drives must be of exactly the same brand, same model, same capacity and same interface. Otherwise, the smaller and the slower of the two hard drives will determine the overall RAID-0 capacity and performance. (As in, a 74GB Raptor and a 120GB Seagate SATA hard drive will result in a 148GB RAID-0 array that performs no better than two Seagate SATA hard drives in a RAID-0 array.)
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