I use an Edirol R-09 with an external stereo mic (Audio Technica ATR25)which gives superb results, even in bog standard 'MP3' quality. The SD card just slips into a card reader connected to my pc.
Occasionally, just for old times sake, I record with a Marantz CP430 cassette machine using the same microphone, but then there's the hassle of dubbing the recordings onto a pc for editing.