For 15,000 RPM SCSI: Seagate (for high workloads) and Fujitsu (for low workloads)
For 10,000 RPM SCSI: Maxtor, Fujitsu, Seagate, IBM, and Quantum
For 7200 RPM SCSI: IBM
For 7200 RPM IDE: Western Digital (only the special edition models) and IBM (just keep the drive in a well ventilated case)
For 5400 RPM IDE: Maxtor