Apple UK's special upgrade offer giving certain G4 PowerBook customers the chance to upgrade to a Combo (CD-RW/DVD) drive launched last night.

The offer applies to owners of 550MHz or 667MHz PowerBooks and runs from January 28 to March 30. Apple UK hasn't yet uploaded a Web page detailing terms of the offer. Customers wishing to upgrade can get further information by ringing Apple's customer help line (0800 039 1010).

The offer extends to 550MHz and 667MHz PowerBook G4 systems with DVD-ROM or CD-RW drives. 400MHz and 500MHz PowerBooks cannot accommodate the combo drive. There is a £215 fee for the procedure.

In Europe, a number of qualified Apple Service Providers will also be able to perform the upgrade, though the price of the upgrade may differ from the Apple Recommended Price.