Thank you!
Many thanks to slyseekr - yesterday I replaced the original 500 GB disc with 750GB 7200 RPM WD Scorpio Black + added a 120 GB Corsair Force SATA 3 second drive and now my Mac Mini runs much faster. I used slyseekr post + iFixit info on how to open the Mini, purchased the cable on eBay and SSD from NewEgg. Instead of the "Mac Mini main board removal tool" I used two toothpicks. It worked. The whole task is a bit challenging, but it can be done as long as you have proper torx screwdrivers + some toothpicks. I also enabled TRIM + wiped out empty space on the SSD. Total time - 2 hours. Total investment - $150 (including a set of screwdrivers).
Many thanks to slyseekr - yesterday I replaced the original 500 GB disc with 750GB 7200 RPM WD Scorpio Black + added a 120 GB Corsair Force SATA 3 second drive and now my Mac Mini runs much faster. I used slyseekr post + iFixit info on how to open the Mini, purchased the cable on eBay and SSD from NewEgg. Instead of the "Mac Mini main board removal tool" I used two toothpicks. It worked. The whole task is a bit challenging, but it can be done as long as you have proper torx screwdrivers + some toothpicks. I also enabled TRIM + wiped out empty space on the SSD. Total time - 2 hours. Total investment - $150 (including a set of screwdrivers).