Re: Digidesign SC48
It's not a huge worry. After the 40GB Toshiba HD in our SC48 slowly died a couple of years ago I installed the smallest 2.5" SATA drive I could find at Best Buy, a 320GB. That drive is still running fine, but I'm getting ready to install a Samsung EVO 640 80GB SSD and carry the spinning platter drive as backup.
Yesterday we had the first RAM problem, ever. Blue Screen of Death during boot, after the red Venue splash screen. I called AVID's 24/7 support number and the tech said "RAM - reseat it first, if it still fails, remove them one at a time and reboot... etc. The RAM stick in Slot 0 was bad. Fixed with a 2GB stick of DDR2 1600 for $32. Originally it had a pair of 512MB...
The SC48 is fairly easy to service, AVID techs are great about emailing PDFs of relevant service manual pages and will stay with you on the phone if you need help with any part of the process.
Enjoy mixing on your SC48. 
