The easiest way to add a sound card and CD drive to an IBM-compatible PC is to purchase an upgrade kit. Leading vendors are Media Vision ((800) 348-7116) and Creative Labs ((800) 998-5227). Creative Labs' $549.95 Sound Blaster Discovery CD 8 kit comes with an 8-bit sound board, a double-speed CD-ROM drive and several CD titles. The company's $749.95 Edutainment CD-16 kit comes with a 16-bit sound board. Serious audiophiles will appreciate the 16-bit board's higher sound quality, but I think 8-bit is adequate for PC applications that don't involve critical listening. Another option is to get a sound board with an SCSI-2 connector that allows you to connect any brand CD-ROM drive. Both Media Vision and Creative Labs offer such boards.