Im also just about to but either the 120gb evo for £56 or 256gn mx100 for £73 - any ideas?
In terms of capacity for price, the MX-100/256 GB wins, and wins in a walkover. I'm actually trying to talk my mom into one, and not for her DESKTOP, but her Moldy Oldy Gateway Solo running XP.
Okay - why such a big fast SSD for a long-EOL laptop?
First off, capacity. The default HDD in the Solo is all of 40 GB, so we're talking six times the sheer capacity alone.
Second is, naturally, performance. The MX-100 will absolutely firewall the interface - which no platter drive can.
Last, surprisingly, is price - the MX-100/256 GB is $109.99 (MicroCenter), and that is either retail or online (and I have two locations I shop at - which one I choose is inventory-dependent and day-of-week dependent; I've had good experiences at both Fairfax, VA and Rockville, MD).
It's only marginally slower than the same-capacity EVO, and is $60 cheaper. The practically no-brainer choice (in my opinion) for desktops and portables that can hold them - period.