Win 7 Ultimate ( Retail Version ) MB is an Asus M3A78-EM 350GB HDD, 6 gig of Ram. I built my home/office PC about 4 year ago and with the usual PC maintence regime it's been a great rig and still going strong. It's taken me a long time to be almost convinced on the merits of an SSD, firstly because my machine as it is, from boot up, gets to the desk top in about 35 seconds, which I consider not to bad, there was also the SSD capacity, which in the early days wasn't that good and of course there was the price. Also, in my case, most of my HDDs have been pretty damn reliable and they can be rewritten to over and over again, ( until a death screen rears it's ugly head ), whereas I believe this is not the case with SSDs, am I correct in thinking they have an expected life span of only three years +? Still I am going to install an SSD but am unsure which one to purchase and be OK with my MB, also unclear of the set up/bios procedure once installed? Also my existing HDD has Windows OS on it, do I need to reformat this HDD before re-installing my Win 7 disk/OS on the new SSD? Taking into account my MB do I purchase a Sandisk Ultra Plus 256GB, ( I like Sandisk as a brand ), a Samsung 840 series or a Plextor M5 Pro,--or something else, I don't want a hybrid. Once purchased and installed, can I partition an SSD? I would like to make a small partition and posibly install a Linix-distro for me to play with, ( but that is another question ).