Cheap Tape Drives for Linux?

Doug Muth asks: "Does anyone have any suggestions for a specific brand of tape drive I should purchase to use under Linux? SCSI tape drives are expensive (plus they require you to get a SCSI adapeter), so I've been looking at some IDE TR-4 tape drives. However, according Red Hat's Hardware Compatibility List, while IDE tape drives are "compatible", Red Hat does not support them." Anyone willing to pass along some helpful suggestions and/or more informaiton on the Red Hat/TR-4 issue?