Cheapest price for a 240GB SSD that I can find at the moment and from a UK-based eBay business seller with good feedback.
Despite not being a major brand they are manufactured with Hynix MLC flash and seem to perform quite well. Looks good as a cheap option to speed up an old laptop or desktop.
Last time one of these drives was posted on HUKD ales197 posted the following CrystalDisk results: http://imgur.com/UKN47Vh
and a full review of the drive can be found here: http://www.enostech.com/drevo-x1-240gb-ssd-review/
These are not new drives but used