MCE Technologies announced on Monday that it has prepared a little something for the owners of "unibody" MacBook and MacBook Pro systems. MCE offers to replace the optical disk drive of your unibody Mac with a hard drive, providing you with increased internal storage capacity, RAID performance or additional reliability if you mirror the two hard drives. The OptiBay upgrade starts at $190 and offers to install 250 GB/5400 RPM, 320 GB/5400 RPM, 320 GB/7200 RPM or 500 GB/5400 RPM SATA hard drives. MCE also offers an external drive enclosure kit for the "SuperDrive" optical drive that's removed by the second hard drive, so you can have the goods from both worlds.