i have a 256GB Patriot Torqx M28 SSD that is the Applications directory for my new MP hexacore via a symlink. It also holds a lot of music sample libraries but it's nowhere near full and probably never will be. It was too expensive. I do not have the OS on it and don't want the OS on it. It is not in an internal HD bay or the spare optical bay (of which there isn't one). It is in a Wiebetech ToughTech 2.5" external enclosure attached to a HighPoint 4-port eSATA-3 6GB/s 4-lane PCIe 2.0 RAID card. One of the other eSATA ports on the same card connects an external Firmtek 5-bay HDD enclosure with a port multiplier and 5 1.5TB WD Black drives configured as a RAID 5. The other two eSATA ports are vacant. I have the little 5-volt wall wart for the external eSATA enclosure plugged into the same battery UPS that the computer, monitor and RAID enclosure are using (I only have one 30" ACD monitor), so if the power fails my Applications don't go away faster than the rest of the system. A Chronosync job syncs the SSD with a directory called /NOTApplications on my 2TB system drive every other day, so if the SSD ever fails I can boot in with a DVD or Target mode and have my applications directory back, at least for troubleshooting work, by changing the name of that one backup directory. The punch line is this: I notice that VirtualRain posted a somewhat elaborate procedure for restoring the speed of an internal SSD. That post was a valuable service for which many are grateful (including me, I downloaded that ISO and I'm sure it will come in handy). But with my approach, if I want to restore the speed of the SSD I shut down my Mac, take my external SSD enclosure and plug it into the eSATA port on my Windows 7 laptop, reformat it to NTFS and TRIM it to empty in about 10 seconds. Then I bring it back to the MP, reinitialize it and copy the backup directory back onto the SSD. No sophistication required. I had the RAID card and the RAID enclosure anyway...my only extra dollar cost for doing it this way was the $80 wiebetech enclosure. I'm not in the least making this as a recommendation for others to adopt. Just posting the info FYI. The performance is fine for me.