I got a Corsair X32 for £100 for xmas as its only £20 more than the kingston and has better read/ write speeds. My windows 7 install was only about 20GB which leaves plently of space for frequently used programs, if theres more space i need then I can always install on a HDD.
Remember the tech in progressing pretty quick so your likely to want to upgrade at some point, when I do this drives going in my netbook