A while ago I upgraded the HDD in my Lenovo T61p ThinkPad with a SSD (can't remember what brand now though) and it's been one of the best things I've done - the laptop is quieter, the wrist rest doesn't get hot, etc. But I only use this laptop at uni and only for looking up things on the net and typing my lecture notes. I've ordered an HP HDX laptop for at home, as a replacement for my main PC, and I'm debating on whether or not to replace the HDDs in that with an SSD (it's a dual HDD laptop - I use one HDD for the OS and installed programs, and a second for storing my documents, files, etc.). Basically the machine will be running 24/7. While I don't do anything intensive (just web browsing, uni work, general sort of stuff - no gaming), I'm wondering if anyone is able to give some sort of indication of how long a SSD HDD would last in such a set up? I ask this as when upgrading to SSD on my ThinkPad pretty much every review cited the largest disadvantage of the SSDs as being that they have a limited lifespan as can only be written so many times - while they often give an indication of how many times they can be written, they don't indicate what this actually means in real life terms... On a related side note, I read that Microsoft Windows 7 has SSD optimisation features, so that may help prolonge the life of the SSD.